some of these numbers are a little unfair, mostly because they don't have much to do with the platform, more just the quality of the game. Such as Final Fantasy XIII, it was a Sony exclusive in japan but still didn't preform, it just wasn't as good as the last. Same goes with Devil May Cry (not to mention a COMPLETELY different dev), the Kingdom Hearts Side Games, Metal Gear Rising was good, but Platinum games is notoriously niche. Crash Bandicoot is done by a different developer now, Persona 4 Ultimate is a completely different kind of game. The fact is more that awesome classic series new titles are not up to the standard of their predecessors, I think that is the main problem.