I can't tell you because we have no reliable stat tracking data for Vita.
I'd be surprised if FFX/X2 hasn't. Dead Nation will have done by default,
Tecmo were happy with Toukden's performance. Though don't know what their expectations were. Destiny of Spirits did, I'm sure Soul Sacrifice Delta will. Danganronpa sold out most places so that might have done.
Again, without any real stats I can't say. But I think a fair few of that list will exceed 100k lifetime (considering a few of them aren't even out yet).
However I still agree with the point you were making, even if a game has a large appeal to Vita owners, it doesn't appeal to non Vita owners to a point where they'll buy a Vita.
RIP Dad 25/11/51 - 13/12/13. You will be missed but never forgotten.
