To be honest, I have much more time for artists who shirk the limelight and let the music do the talking. It says a lot more about why they're in the game, and how confident they are in what they do. Also, yes, I think it keeps a certain cloak of mystique around things which is strangely enjoyable.

Aphex is a bizarre hybrid in that he is notoriously shrouded in mystery - quite often encouraging (and, I think, enjoying) massively bizarre gossip about himself, but yet uses his actual face as his brand... and it works.