MFSL cd's vs. Redbook cd's


I am still fairly new to this hobby. Prior to a couple of months ago, I had never heard of Mobile Fidelity cd's. How much better sounding are these disc compared to standard redbook cd's of the same title? Do the high prices on eBay and other sites equate to a higher quality listening experience? Thanks in advance for your feedback.
houstonjazzfan
the mofi cd's are a hit and miss. some sound great, while others are flat and lifeless. as mentioned, some newer cd's do sound fantastic. it's great to hear that some musicians are putting time and effort (and $) into the production. in answer to Djones1915, the quality of the cd does make a huge difference, but you will realise more of that difference on a highly detailed cd player. whether that cost's $10-20k doesn't really matter, but you probably need to spend money to get the most out of the cd.
I guess it all depends on how good your hearing is Houstonjazzfan. I believe they are very worth the extra especially on 180g vinyl. Does that keep me from sying a great big breath of relief everytime I put on Yes "fragile" gold disk? Not at all my friend! Do yourself a favor if you've invested in a good system.
Thanks everyone for your responses so far. I purchased a Modern Jazz Quartet MFSL cd off of Ebay at a fairly decent price. Hopefully, my ears are good enough to notice a difference once I have a chance to play it in my system.