Maybe it's just me but......
You can argue whatever you like, but getting a game to play decently on a PC is far more expensive than consoles, in most every case.
If I wanted to go out.....And buy a PC to play Mass Effect...How much am I going to spend? If I want to play it on a console..How much am I going to spend?
$200 on September the 7th can get me a crapload of gaming for that price, and a ton of new cutting edge titles. What kind of cutting edge titles will a $200 PC get me? Not to mention the difference between hooking said X360 up to any TV I want, and pay nothing versus buying a monitor that will not be in my living room anything non-PC.
If your an uber-elitist on either side of the coin, you can get a cheap rig, but the consoles are always cheaper.
I am still gaming on the same Xbox 360 I paid $150 on launch day, November 22nd, 2005...Can't say that about my PCs