Thanks for your input. I'm planning on just matting the prints. I do have one large print in a large frame I'm going to put on an easel as a sort of show piece though.
Regarding your comments on unrealistic prices, could you clarify if that is too high or too low?
As far as the costs for the fair, it was just $100 total for the space and table, chair, a tent rental. The real upfront cost is matting the print and the time to make them.
I do agree on having a card with a brief description of what the images are and how they are made. I am hoping the novelty will add some interest, but you are correct that most people won't know nor care. I have some ideas for propping up some prints on a table using some mini easels/stands. I won't have too many prints so I'm going to try to spruce things up with presentation.