http://www.purgatorycreek.com/

Listen to the piano sample on this site done by

William Coakley 'Perfect Piano 'Series which are 16MB samples or his 'Ultimate piano series which are 32MB in size , then listen to the Roland RD700sx 'Ultimate grand' File size unknown but you can bet its more than 16MB or 32mb . Then listen to
Sweetwater's Ultimate Grand Piano "Yamaha" which is just 16mb in size. Finally listen to
Native Instruments Kontakt 3.0 "Concert Grand" which is a 1.96GB sampled concert grand piano. Then post up your own opinions about the differences in in sound and texture and whether the argument about large VST sample size hold as much water as you would imagine it should.