Is it still too early to officially declare the age of plastic strumming/banging games over yet?
At this time last year, GH, RB, etc dominated a lot of sales chart and mindshare. This year? Not a single one showed up on top 10 NPD (granted who knows about NPD top 20). DJ hero was proclaimed fairly widely as a failure (relative to expectations), etc.
After the insane amount of milking (here's looking at you Activision), I wouldn't be surprised.