Frogman: Actually, yes a very skilled trained professional that plays the piano probably can tell the difference between different pianos. Just like a trained Violinist can tell the differences between Violins etc.
What my point was, is that if I brought good ol' Eldertford into a room in which he didnt know what model piano was playing, he wouldnt be able to discern the difference. In other words, if I brought in a few different piano's,threw in a few quality high end full range speakers and had him sit down and listen to them(without seeing them)all without telling him which is which, he wouldnt be able to tell the difference between ANY of them. If you cant tell the difference between which is which, how can you make the claim that no speaker can sound as good or lifelike as a "live" piano?? Its almost impossible.
Yes I will be running for President too! :P