Not to rattle your cage or anything, but I do belive "mint" means, "New in the box, never opened, never used, direct from the manufacturer." Like in coins from the mint. At best these old computer items are "like new in excellent condition".
I have dealt with comic book collections and collectors that insist the items they were offering were in "mint" condition. After it leaves the manufacturing location, packaged, shipped and stocked and shuffled around on the self, the item has been handled numerous times.
No offense, just my two cents worth. ...and no, they aren't in mint condition either. :-D