While I’m by no means a life-long Harmonix fan, I’ve loved them ever since they rocked my world with Guitar Hero II. They’ve consistently made quality music games and supported them with great downloadable content, which puts them head and shoulders above anybody else in the music/rhythm genre. As far as downloadable content goes, no game ever has had better support than the Rock Band franchise. I have easily spent hundreds of hours (and dollars) on their products, and don’t regret any of it.
It looks like my money wasn’t enough to keep their operation going. Viacom, parent company of MTV and Harmonix, has announced that they’re going to sell off the creators of Rock Band and Dance Central.