Dude you are always finding stuff. What type of thrift stores are you hitting up? Goodwill's? All of the Goodwill's near me jack the prices up on a bunch of stuff and I think "this is goodwill isn't stuff supposed to be cheap."
I go to a lot of goodwills, and smaller thrift stores. it sucks now though because goodwill pulls most high dollar stuff for their E Sales department. I think most of the sports stuff I hunt for still makes its way to the floor, but it kinds pisses me off that they get all the stuff for free and now they seem to be researching and pricing stuff higher. the one I have the best luck with for sports stuff is called ECO Thrift but there stuff starts high and gets marked down by 25% each week but they buy all their items. seems like local team stuff is priced high but I find steals on out of market team stuff. and the jersey I bought off ebay just thought it was pretty rare paid $15 and the A's bag was from the same guy I bought the bats from at the flea market.