When we were there in September we stayed in Waikiki at the surfjack for 2 nights... ABC right next to it.
I was wondering the same thing when I realized the market by Aulani was an ABC... I could only remember the price of one thing...
Coors light 12 pack was $1 cheaper at the Waikiki vs Aulani. Hehe.
Doesn't mean everything was more, just felt like it to me cuz the beer was.
(As other posters suggest, we made a trip or 2 to Costco and target for provisions)
Have fun!