yes I used to work at wally world too, (#1867) and I do remember being able to access pricing of items, and found that wal mart does strategically price certain items to make minimal (sometimes zero or negative profit) on certain items just to get a certain demographic into the store. Of course some items carried a 150% mark up too!! Balancing the equation out.
Mossy that's part of the smoke and mirrors game they play but that a lot of "LOYAL" shoppers haven't picked up on yet.