Unsure of whether there are legal pitfalls or other potential public harms/annoyances for mods I'm not thinking of, but while trolling eBay I was thinking about how cool it would be to have a retro game stuff marketplace here. I would much rather buy/sell/trade with people in a community I trusted and who would I knew probably weren't just a bunch of scalpers. Like, it would be neat to buy/trade (even at a higher price than average) with people who love their retro games and just want to pass them on or need the extra money, and I'd also much rather sell (even at a lower price than average) to people who would probably actually enjoy and play a game they buy rather than turning it around right away for profit.
