So many of my friends in the gaming business are raving about DJ Hero. During several casual chats this week, I heard superlative after superlative thrown at the game. Most of the time, I just nodded and grinned (or in some cases did the IM equivalent of nodding and grinning). To the friends I was comfortable with -- the ones close enough to engage in a healthy debate with, that is -- I responded with one simple question, "Yeah, but is it worth $120?"