As ever I'm amazed people are so emotionally touched by the numbers! To me they're interesting to view, but once a console has enough sales to ensure it gets games/developer support there's nothing to worry about after that.
If I had a 360 my only fear would have been it didn't sell enough to get full developer support, ditto with the PS3 or the Wii. With pretty much every title that's not exclusive or timed hitting both PS3/360 with essentially identical versions and Wii getting its own Nintendo franchises there really isn't too much to worry about anymore IMHO.
Try to be reasonable... its easier than you think...