If it weren't for Wii, console gaming would be dying the death it deserves.
Look at the numbers, without Wii, this gen would be the worst selling generation since the 3rd. Neither of the old-fashioned consoles are on track to match PS2's sales, even if combined.
That's probably why nearly all games designed for PS360 are being ported to the PC, there's just not a big enough userbase otherwise.