I admit, there are some situations when I think "I want a 360 as well", for games like Dead Rising - Average graphics, terrible AI, still looks fun for at least 10 minutes before the novelty wears off. And Assassins Creed, which is really cool. My PC wont run Assassins Creed, so I'd need a console for it. But, too expensive.
Some people might say, "But you only think the 360 and PS3 are so lame because the Wii is here. If there was no Wii, you'd think 'WOW'" My answer to that is, if someone brings something creative to your general market, you have to compete with that. And in many cases, it will make your console seem a lot less worthwhile, because it doesn't have a Wii-mote. If Microsoft and Sony want a chance, they need to be creative. They need to do something crazy. The whole idea of making it a home "Entertainment" console, or a "PC" in PS3s case, is completely going against the idea of why we play console games.