Each market is different.. I would just call and price around.. As a screen printer, I can tell you that I get at least 1 call a day from someone starting a new t-shirt line so you probably won't get much of a discount. Also, most screen printers will not give you the same gaurantee if you provide your own shirts and you usually won't save money by providing the shirts. Next time I would price around with the shirt included -vrs- you providing the shirts.