condition is everything in marbles...serious buyers will ck em with a jewlers loup for even the tiniest scratch or defect...then again theres the collector that will buy a mib with a little damage...some call that play wear and know that the marble was coveted by some kid many years ago and held that marble in great esteem...they were cheap and even the poorest kid could have em..some of the rare marbles like golden rebels and watermelons can keep their values with damage but alas most do not...if dead mint that peerless if it had aventurine could bring 10$ or so..w/o the sparkly aventurine maybe 2$...its a tough business ...keep lookin you may find the high dollar mib....its fun and you dont hafta feed em!!!that alley shooter in mint with flamin swirls mint =5$...