Why According to some Turntable extremists Pitch Control and Direct Drive is Sacrilege?

Oh, I forgot to mention. It is not so much the weight but where the weight is placed. Ideally it should be at the periphery of the platter. Too much weight and you wear your bearing out faster. Out of balance and you wear your bearing out faster. The best way to go if you wanted to increase the flywheel effect is a periphery ring like VPI, Kuzma and Clearaudio make. Just because a platter weights more does not mean that it is better. 

Tacit admission that some belt drive turntables exhibit audible pitch instability. During the 90s, when I owned the SOTA Star Sapphire III, I used to believe it was just a problem inherent to recorded music. “We” are much more sensitive to varying pitch than we are to absolute pitch.

No disrespect to SOTA was intended. As I understand it, their newer models have cured the pitch problem, according to hearsay evidence.

OP.

Yes there is a stock L75 for sale I have my eye on but it does depend on just what the cost and complexity of " essential " upgrades would be before I pulled the trigger.

Imo, heavy platters are MUCH better, however care needs to be taken to relieve  the bearing of its weight. It's one reason heavy platter turntables cost more.