Right, that still disregards how niche publishers tend to operate however. They even put out a PSP game just a few weeks ago, albeit digitally, and are putting out a WII game in a few months. Plus I believe P4G did fairly well, and if that did well that shows this niche of games stands a chance there that bigger games couldn't find, not to the degree of being viable anyway.
Which is something that came to mind too: Just how long have XSEED games been announced ahead of release? Book of Shadows was about three months (October to January), Pandora's Tower looks to be TWO months even with retail printing, Ys Seven was announced three months ahead much like Book of Shadows, and Ragnarok Odyssey was announced in May and released in October, coming out in February for Japan.
Yeah, RO's timing MIGHT be cause for alarm, but I don't see Ys Celceta getting localized and released before summer anyway, so we're not really out of the comfort zone until E3 passes without news. If this were a company like Konami or Square Enix I'd be much more worried, but they're not.
I really can't think of a reason why a hypothetical PS3 version would be less likely to be localized than a Vita version.
Yeah, unless SCEA's gone completely idiotic about ports from handhelds (which does no one any good especially as the PS3/Vita gap is smaller than PS3/PSP) a PS3 version would probably seal it if anything. PS3's a current, viable console, and much of North America is more console focused (same for Europe too, but I don't believe the disparity is AS extreme), so it'd be safer to release on PS3. Really, if it weren't for some of SCEA's arbitrary crap I'd consider it a complete non-issue, and even then that's largely because it hasn't really been tested yet (though there are plenty of PS3/Vita simultaneous releases, which is comforting).