I agree with the statements of Bob, Jason & David. We live in a free market society. If you don't like the prices at one establishment, move on to another.
I'm not trying to bust balls here, but what did you think you would accomplish by telling them
"Well at those prices you guys are marking them up over 100% of their retail price." I just don't think that would really be anyones business but the store owners. Maybe it would have been better just to mention that you wanted to buy some, but they were a little out of your price line. I've had store owners lower their prices for me with just a kind word and good attitude. Just my