Okay, on the first point, enough with the panic button. There's three major console companies and one of them's got to be in third. They're also so ginormous that it would probably take YEARS or one very quick war to actually destroy one. It's gotten to that point.
Second point, Miciosoft as the sole console on the market would be painful. Why? Well, for starters, RROD. There's a Yellow Light Of Doom for PS3s, but unless I'm going to the wrong site...they don't happen as often. Poor X-Box fans have to deal with RROD in waves sometimes, a generation of machine deaths. Now, this technology is amazing, but it's really the "America! Fuck yeah!" of the other console giant. It's a nice system, but Microsoft didn't exactly pioneer this stuff. And let's not forget that, well, this IS Microsoft...and there are enough complaints about Microsoft to fill uhhh...Jupiter, seriously. Okay, everybody complains about EVERYTHING, really, but the butt of the joke is seen more against what many call the Evil Empire. Sorry, Bill. Branded for life.