I was part of a small group that was able to attend a taping of Lang Lang. I don't know if it is because he's overrated (is he even well regarded? I know he's famous) or because it was just for television, but his performance paled in comparison to a number of Gould performances I had watched on Youtube, particularly when it came to effect. And I'm comparing Youtube to live, not what it would have been like had I been at those performance. Youtube Gould trumps live Lang Lang.
Admittedly, I know very little about music. My favorite pianist is Gould and my favorite cellist is Rostropovich (which probably makes it pretty clear I'm a fan of Baroque and in particular Bach), so when I say that this is perhaps my favorite video of a musician (of that type), it is probably for the wrong reasons:
at about halfway through I can't even look away. I must have watched that video dozens of times.
Actually, it occurs to me I don't own any of the non-Bach recording of Gould. Are any of them particularly worthwhile?