They still look the same though don't they?
The ones at the higher level store have good int/vit on them.
BTW (I don't know if I can ask in here) but where do you get yuki's cash shop clothes? I know theres cash shop quests but I don't know which one is for yuki.
It seems 2-10H is a Krieg hammer always, but I've seen Yuki's running around with a cool looking dress and some other stuff.