No problem. No one showed but me, but I did get my question answered.
Costumes are allowed in LLoyd Center Mall as long as you don't have any:
Masks
Weapons, replicas or real
Face paint
Other than that, anyone can wear cosplay in and around the mall.
Also the report is that most items are collectible figures running $14-40, plushies for under $20, boxes of pocky for 1.75, replica swords for maybe $40-60, t-shirts for $20, anime DVDs and manga at average prices, keychains for $2.75-4.25, and lots of other random stuff..
Also Anime Asylum is one of the few that sell a bit more Inuyasha and Dragon Ball related items. But you gotta catch 'em all right away because they go fast.