Its hit and miss, some comic stores charged an arm and a leg for 25th, Heroes World at Hwy 7 and Warden was selling 15-30 dollars on singles. While Silver Snail on queen st. was selling for 8-10 (when they were first released, they raised them to 12 or 13 several months ago). Planet x was charging 10 dollars for singles to start, then raised them to 15ish. Some sellers definatly try to take advantage of the popularity, and I found it really annoying that they would start raising the prices of singles when they sold them cheaper before, and especially taking into account our Dollar is worth a lot more then it use to be. You find some good prices here and there if you are patient though, last year at Canadian Joe Con we had 5 dollar singles, and many online stores are clearance 25th like BBTS, you can get some cheap fodder there. BST on forums though have been very good to me, gotten very good prices on things I need, and you can always negotiate with them.