I take it you mean luggage? Suitcases, as opposed to specialty equipment cases?
There is a Samsonite outlet at Belz Factory Outlets Mall#1 that should have plenty of hardside models. Also, any TJMaxx or Marshall's store will probably have a fair selection of luggage available, though hardside cases are not as popular as softside in the US, so the stock will be more limited.
TJMaxx or Marshall's will avg. around $80-110+tax for a 26" pullman. The Samsonite store will run more, about $140-160+tax for the same size bag (a Samsonite bag that size will be over $200 in a regular price dept. store.) Sales tax is usually a little under 8%.