The prices do look reasonable, especially of the list just above this reply. But I´m wondering, who establishes that games are in excellent condition, or mint, or whatever. Are there phot´s available. And is your ´fee´ in those prices?
Another question, let´s pick the popular game Tempest as an example. According the wanted list in the spreadsheet there are 5 people interested in this game, starting with Timepilot. Now a Tempest turns up in the above list, how are we proceeding with this game then (as an example)? Does the number two have to wait until the number one (in casu Timepilot) made his decision? And the number 3,4 and 5 so on. What if they moved on to another game.