Console gaming are more likely to die first than PC gaming, in my opinion, if people prefer console gaming because it's easier than PC gaming, then they will prefer onlive because it's even easier than console gaming, and cheaper, it's only matter of time. Mobile devices are becoming more and more powerful, why buy a console when you can play in your phone with HDMI output (not yet but it will happen). Of course if you are a hardcore console gamer you are not going to agree with that, because you will never play God of War, or Killzone, etc on a phone, neither would i, but the money goes where the casual gamer goes.
I have a 360, a PS3, and my PC, and to be honest i see more variety of games genres in PC, not only that but i see and evolution in graphics and in gameplay, don't look at AAA titles, they hardly innovate ( i agree with uncharted being a ripoff of tomb raider, a very good ripoff though). Look at indie games in PC (Gemini Rue, Amnesia, Red Orchesta 2, World of tank (i love that bastard)), you like RTS, try Shogun 2, and a lot more.