Mint means they're in perfect condition. If they're out of the package, it means theres nothing physically wrong with the figure and it comes with all of the accessories. If its mint in the package/on the card, that means the theres no bends or anything is wrong with the packaging. Its just a grading system.
I collect mint, loose GI Joe's from the 80's (82-88/89).
I'm pretty picky about condition....."mint" has to be stiff joints, new paint, new screws...basically...it looks like it just came from a package. I'll take one or two little imperfections (its hard to find some figures 100% mint, the paint can be very delicate and flake, rub off.....some of the Cobra soldiers can be hard to find with 100% intact cobra insignias). Or guys like silver pads, grand slam...those guys can be very tough.
So it might differ slightly for different figures.
Some people put that word in their auction listing just to draw attention and entice the new collectors. You have to look into the seller’s credibility and make sure that they're not using the word loosely.
even tho i buy toys for my son i prefer MIB to open toys so i can be sure he's the only one that has had a chance to play with them.. currently trying to win him several MIB NA he-man vehicles off ebay.
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