I know alot of people use COMC but I think it limits you in how you can sell your cards. I've seen some people complain that when buying many cards, the shipping charge doesn't justify. And the way the whole thing is setup, could you imagine 10 million people sending them cards?
Daniel Gossett '14 BC red refrac mini #/5
GREEN parallels of Sean Manaea, Matt Chapman, Jharel Cotton, Franklin Barreto, Gossett
ROYALS base autos from the 2015 World Series roster