I think 90k to 1million compared to 140k to 7.7million is a greater ratio. Plus there's also the matter of hardware restrictions, or they might have found making an enhanced port of Innocence R was easier to achieve on the Vita or better resembled what they wanted a complete version of Hearts F to represent. Who knows. Could just be bags of money. I doubt it though.
Also I'd ascribe Abyss' success in the west to the fact so few JRPGs exist on the handheld. It's kind of like how Cross Edge sold well enough in NA on the PS3 despite it being such a god awful game.







