Well, perhaps — we always felt like the PS Vita's software line-up was very Western oriented so we're not sure; do Japanese gamers get excited about Wipeout?
If they don't, then they absolutely should. And just to service that hype, Sony's announced that it will be releasing a Wipeout 2048 demo in the region on January 17th.
A lot of PS Vita games are getting demos in Japan right now. Hopefully they all make their way onto the PlayStation Store in time for the system's Western launch. Because, y'know, demos can be pretty useful.