Best used turntable/arm combo for under $7,500.00

At 7500 you really have a great choice of decks available to you. Try out a load of decks. You have some very nice Lenco and Garrard variants and you wil lfind they have a superb drive and 'boogie factor'. Direct Drives are very good at being neutral so hear some technics SP10's and similar decks, belt drives IMHO tend to have a wider range of variation - the SME 10 and 20 are very neutral - My own Amazon Model One has a very quiet backdrop and images superbly, although, having recently heard a Lenco variant - I think it doesn't time brilliantly. I personally regret not buying the DPS about 9 years ago when it came out first (I felt that I needed a few more reviewer approvals rather stupidly instead of trusting my ears) the DPS 2 has superb drive and boogie factor and was a rather superb deck for imaging as well. I personally found that the Platine Verier was a tad warm for me.
People tend to appreciate different things in sound, and that tends to change over time. At first I was crazy about imaging, now I am more turned on by timing.
I bought an Amazon Model One. I recently bought an old Townshend Elite Rock for £400 UKP with a Mission Arm and a Pickering XSV cartridge, I am yet to 'face off' against my Amazon Model One, but if truth be told, I have to say I am wondering if the Amazon Model One is as good, let alone better.
I have to say that Roscoeii is giving some excellent advice - listen to a Townshend Turntable before listening to more expensive decks, then listen to it at the end of your audition journey - you may save yourself some serious money.
I will say that budgeting for a good tonearm cable is mighty important. I have a Nordost Tyr, and plugging that in with the Shelter 501, was far better than a Transfiguration Temper V with the TCI cable.

All the criteria you have mentioned buying a good expensive turntable is about functionality, reliability, cost etc...what about sonics ? Anyway a forum like this is highly handicapped to answer big blanket questions like these, on top you dont mention your sonic preferences, in such a situation the only thing you are going to hear is people recommending the TTs that they own or have owned. That would mean every post suggesting a different TT.

My own Amazon Model One has a very quiet backdrop and images superbly, although, having recently heard a Lenco variant - I think it doesn't time brilliantly. I personally regret not buying the DPS about 9 years ago when it came out first (I felt that I needed a few more reviewer approvals rather stupidly instead of trusting my ears) the DPS 2 has superb drive and boogie factor and was a rather superb deck for imaging as well. I personally found that the Platine Verier was a tad warm for me.
People tend to appreciate different things in sound, and that tends to change over time. At first I was crazy about imaging, now I am more turned on by timing.

Lohanimal, interesting that I am on almost a similar boat as you. In the last one year or so, timing of the music has taken up very high priority in my listening. Rather I would say I discovered its importance in the last one year or so. That happened after I heard Naim CDPs and amplifiers and Avid turntables (especially Acutus). Recently I also heard a LP12 with a Naim ARO tonearm and Helikon cartridge and it was again an outstanding performance in terms of speed and timing. Have you heard the Avids and LP12 ? Even a Rega P9 is very good in these aspects.

BTW, I use a Verdier :). But I have made sure I use fast lively tonearms, cartridges and phonostage to go with it and also use a similar rack under it (Hutter). The Verdier times in a different way than the typical British TTs. It doesnt sound blazing fast (like a Rega P9), it is not in any hurry or nervous. It is like a highly skilled sportsman who does everything in a way to make it seem effortless. But then it is an ideal belt drive sound, which will hold its own but still may not beat the Idlers and DDs in areas where they excel. BTW, I have been eyeing a EMT Idler or DD as a second TT to enjoy that sound as well.

A Well Tempered owner here. With that budget I'd go for two decks. The Clearaudio Performance or Ovation both play 78s. And a Thorens 124 with an Ortofon SPU mono cartridge.

Hi Pani - Everything you say is very itneresting. I have an EMT 950 - but I am taking an age restoring it - the problem is that it aint like a Lenco or Garrard in that with those it is fairly easy to take apart put back together - the 950 requires expertise - which is available from Hans Fabritius and others in Germany - for a price. I may just sell my 950 as it is gonna cost me too much to properly finish the restoration.
Back to the subject - it is very interesting what you say about the Linn. I was not a big fan for a long time, then I heard one that had had the Funk Firm mods, and had Naim amplification. It was absolutely fabulous - truly musically brilliant. I was unimpressed though by the Rega P9 which I tested around the same time as the Amazon Model One. I would have bought the Clearlight Receovery (not the basic version) had it been available when I bought my deck. I would like to listen to the Artemis SA-1 - I bet that it is cut from the same cloth as the DPS. I really like turntables that are compact and are not prone to being described as 'Audio Jewellery) like large transrotor decks (not that i criticise those who do like them - whatever floats your boat).
I liatened to the Platine, and whilst I was impressed, I just preferred the sound of the Amazon - that was then - who knows now... LOL
My sensitivity to timing is very much compunded by my loudspeaker choice - namely Yamaha NS1000M's which are very fast, and are sealed (none of the timing lag of ported speakers) - I always tend to like electrostatics and other planar designs as well. Couple all this to the fact that I also have a Lavardin IT which is a very high resolution, high speed design - it is no wonder that I have become so timing sensitive.
It is perhaps no wonder that people who go crazy over imaging tend to buy single ended amps and horns, and go for turntables that accentuate this.
I think that Rmarkus is about to start a wonderful journey, and should really get round to hearing as much as he possibly can - if he finds a cheaper deck that he enjoys more than an expensive one, then he should trust his ears and judgement - don't make the mistake of being over reliant on reviews and other peoples opinions - use them as a guide.