Aside from the smiley faces....I think we should also include some sort of symbol to signify whether we are able to haggle or bargin over the prices --> since many of these LFS are asian runned.
I'll start by contributing my experience:
-- Pacific: price-negotiating potential if you buy from them in large quantity.
-- Royal Aqua World: definitely possible, if you haggle over the right items...and if that asian lady is in a good mood that day LOL.