http://www.n4g.com/ps3/News-233077.aspx
"Slashgamer writes: "Can this be for real? According to the NPD, Konami's rhythm game Rock Revolution sold poorly. Again, if this is real - poorly would actually be good news for the gaming publisher.
The NPD Group reported - get this, Rock Revolution sold less 3,000 copies of the game for the month of October. Because of the numbers being so ridicules low, I have my doubts about the legitimacy.""
In 2 weeks, a game for the wii sold 2 copies...