I just looked them up online. They go to comic cons all over the place. They were at SDCC last month.
So the print I was going to buy was a smaller size, probably a 6 x 10 or something like that. It was $20. No problem. I pay him and he goes to look for it, but can't find any. I was a bit bummed, but he said, "I can refund or I can give you a deal on the 10 x 20. How about $30 for it?" It is normally $50, so I saved $20 and was quite happy. Now I just need to find a frame to put it in.