That's what I'm talking about Luigi!
Actually disappointing for OP, very much so. And Vita flat, but it's all downhill from here.
Vita is not flat, it's actually up ~5K. Why is it downhill from here? it went up with no major release, next week onwards it could settle down on ~30K without any. The only thing going downhill is the Wii U, that thing can't beat the PSP.