This is more a critique against PC gaming rather than a critique of this new beast. It is absolutely stupid to think that you need this GPU to "match" the 360 - PCs have already surpassed the 360 and PS3 a while ago in the budget range. You ARE aware that there are GPUs in $50 range that are more powerful than the one bundled with the XBOX 360, right? Heck, there a LAPTOP GPUs that are better than the 360.
PC gaming has its obvious advantages besides better graphics, namely the trusty keyboard & mouse and modability. MMOGs typically require keyboards, and any game that emphasizes modding is likely to be a better experience on the PC, e.g. I pity those that bought the console versions of Dragon Age.
Nothing motivates a man more than to see his boss put in an honest day's work.