There is a much bigger jump from a gt to cobra than cobra to gt500. You're comparing apples to oranges. Most people who are spending 13k are on a budget so to hear for a few more grand they can get a mach or cobra they will most likely try. Someone who has 25k to spend on a cobra can probably afford a GT500 if they wanted to. It doesnt matter really, all it takes is the right person to come buy this car.