Userbase is a good indicator, but sometimes being one of the few big titles can be beneficial for a game. Persona 4 Golden saw a ridiculous adoption rate of something like 1 in 6 Japanese Vita owners having it. By comparison earlier in this thread we were discussing odds of SKB in NA having adoption rate of 1 in 60 3DS (which would be good). I happen to think Hatsune Miku will be one of a handful of Vita titles that moves the needle for a week or two, but overall I have serious concerns as to long term viability ("Tearaway" did look good though).
Vita has serious issues, the announcement at Gamescom of no price drop until 2013 shows how Sony failed to learn from all the other more powerful hand helds Nintendo has fended off through the years (PSP was surprising, as you say due to phenomenon known as Monster Hunter). In fact the Vita is in part struggling because of the PSP still being respectable.
Often people like to jump to bold predictions because saying "wait and see" or "not sure yet" does not light up headlines. The game industry may face a contraction, but that is after a boom period of expansion in the past decade, so I'm not as worried as some are.
I now have a JPN 3ds and this game pre-ordered. I still hope it comes over though. Only a few more weeks.
It would be nice if you could hold off on buying a JP copy at least until some announcements are made but that's just my two cents. Other than that, continue on about your business.
Anyways, I can't wait to see what happens next.
Also, congrats you guys on the post and view count.