So an aquaintance of mine is putting together a small showing of her photography. She's renting a booth at a art festival sometime this summer with a friend (July I think) and after seeing a few of my photos has asked me if I want in on this (I think mostly to help pay for the booth). I was very flattered and am excited at the prospect, mostly just to see what people think of my stuff. I could put together maybe 10 shots I like enough to put in a show. But one thing is bothering me. I use film to take my photos, then have them scanned by the photo shop and I'll edit them on Gimp and then have them printed by the photo shop. How do you set a price on this? It's not like a hand-made print developed in a darkroom that is a one-of-a-kind. To me, it just wouldn't feel right to charge anything more than material costs. And, say I do sell a print. Can I include that same print again if I were to put on another show? Thanks in advance.