How many different prints do you offer on site Rick? Do you carry many sizes of same image?
The sizes I bring in are 5x7, 8x10, 8x12 (not happy about this size, but many shots require it!), 11x14, 12x18 and 16x20. I limit 12x18 and 16x20 to my most popular prints. I will carry the same image in 5x7, 8x10 and 11x14 if it is a good seller. I went into this show with almost 600 prints and had another 80 of my top sellers overnighted after the first weekend. Since I've been doing shows for the past 3 years, I've built up an extensive inventory. The funny thing is what you dont think is great, someone will stumble across and buy. Since I was running low on my popular prints and had room in the baskets, I added a bunch of "dead stock" and they gobbled it up! You never know! This where our perfectionism is irrelevant to the customer.
The main thing is loading up at sale prices during the year. I only buy non-color corrected lustre from nations. I pick up $1 8x10's and $2 11x14's during the off months when they are on sale, that's how I built a big inventory. After each show, the "leftovers" grow.
Landscape prints are impulse purchases, they must have it in front of them to buy. Expect to sell 20%-30% of your inventory at a good show, more inventory, more sales. This is where I see my friends fail at shows, 30 "fine art" prints in expensive matting and frames doesn't cut it in the middle class market. Move 100 prints at 20% cost, you have profit. This show, the last 2 weeks before Christmas, is going to eat up 50% of my inventory. Frames that rarely sell during the year, are flying because they are a finished gift. Now I'm using frames to hedge sales against my shrinking inventory which is too late to replace.