Really, the Technics is a cheaper starting platform than the other two. You can get an SL1210 Mk2 from Musicians Friend for $399.99 here. That's almost in the price range of a P1 or MMF 2.1. Remember, the P3 is $685. For that money you could get the SL1210 Mk2 plus KAB's fluid damper and threaded clamp mods.
The platforming you mention (thick slab of wood with Vibrapods or Isoblocks) is essential for moving the SL12x0 'tables up into their potential. To that I'd add a Sumiko headshell to increase tonearm/headshell rigidity and use its azimuth feature to optimize cartridge angle. Now it can handle a wide variety of cartridges, both in weight and compliance.
The big inherent advantage of the MMF5 and Rega P3 is their tonearms. The big inherent advantages of the Technics are speed accuracy, low motor noise, close tolerances, build quality, and ergonomics. You can narrow the gap in tonearm performance with the KAB fluid damper and Sumiko headshell.
Or you can eliminate the tonearm gap this way: Start with the SL1210 Mk2 for $400 and order Origin Live's Technics armboard adapter (about $70 here) and an OL-1 tonearm (about $240 here or here). Your total price (plus shipping) is $710, which gives you the Technics drive system and ergonomics with essentially a rebadged Rega RB250 tonearm.
That's a mere $25 over the P3 and you have well-mapped upgrade paths available--from KAB for the turntable (outboard PS, threaded clamp, strobe lamp disabler, Isonoe Footers) and Origin Live for the tonearm (structural mod w/tungsten counterweight, tonearm rewire, and slotted armtube).
The platforming you mention (thick slab of wood with Vibrapods or Isoblocks) is essential for moving the SL12x0 'tables up into their potential. To that I'd add a Sumiko headshell to increase tonearm/headshell rigidity and use its azimuth feature to optimize cartridge angle. Now it can handle a wide variety of cartridges, both in weight and compliance.
The big inherent advantage of the MMF5 and Rega P3 is their tonearms. The big inherent advantages of the Technics are speed accuracy, low motor noise, close tolerances, build quality, and ergonomics. You can narrow the gap in tonearm performance with the KAB fluid damper and Sumiko headshell.
Or you can eliminate the tonearm gap this way: Start with the SL1210 Mk2 for $400 and order Origin Live's Technics armboard adapter (about $70 here) and an OL-1 tonearm (about $240 here or here). Your total price (plus shipping) is $710, which gives you the Technics drive system and ergonomics with essentially a rebadged Rega RB250 tonearm.
That's a mere $25 over the P3 and you have well-mapped upgrade paths available--from KAB for the turntable (outboard PS, threaded clamp, strobe lamp disabler, Isonoe Footers) and Origin Live for the tonearm (structural mod w/tungsten counterweight, tonearm rewire, and slotted armtube).