Coins at flea markets have been hit & miss for me. I've seen most coins a little pricey-er than coin shows. But last year I did stop by a local flea market near my parents house in Georgia and picked up each of the 4 kinds of 2009 Lincoln presidential pennies from a mint roll at 8 cents apiece (that's $.08), P & D mint marks. Several months before I paid 75 cents each at my local coin shop. You never know unless you take a chance and look around.