How much ‘Guitar Hero’ is too much?

Will 2009 be the year of the “Guitar Hero” glut?

Sure seems like it. Activision Blizzard recently promised no fewer than five new games from its “Hero” family of games. There’s “Band Hero,” a top-40 version of “Guitar Hero.” There’s “DJ Hero,” complete with a new turntable controller, and “Guitar Hero 5,” the next full version of the game that started it all.