normally all the shops sell the same price for each item. its no
point looking for cheaper ones as the most u'll get $1 or $2
cheaper.
always make sure u do some homework of the things u gonna buy, esp
u are nuts over it, then the seller will know he cant eat u.
no need to be too friendly with owners there. its like a fast food
chain there, menus are displayed outside, so go in and request for
the stuffs u want, then get out from thr!