I know this is kind of off topic, but I find most supermarkets are bloody awful at selling the new generation of consoles.
My local Tesco still have the DS & 3DS games lumped into one massive section. A friend of mine ended up buying Super Mario 3D Land because "it was in the DS section" and she thought it would be compatible with her normal DS, which it wasn't (she ended up buying a 3DS because I told her there was a new Kingdom Hearts game for it as well, which is her favourite series).
They also only had 6 spaces for Vita games in the first place (mixed in the with the PS3 games), and two of those spaces were taken up by memory cards. So they only really had 4 games for it. Two of which were the different versions of FIFA.
Thankfully, my local ASDA is a lot better. They keep their systems separate and actually have a surprising amount of games in general. They had at least 20 different Vita games last time I checked, and even more 3DS titles.