Game memorabilia is a weird niche, but there’s definitely a market for it. I have a few games on my bookshelf that would sell for ~$250. Cuz I was an autistic kid who made sure to keep all of the original boxes, box art, game manuals, etc (because it bothered me when they weren’t complete.) So a lot of my childhood games are actually worth a fair bit of money now. Retro games are stupid expensive, cuz everyone either knows what it’s worth and is hoarding their collection, or in their 30’s and 40’s (which means they have enough money to afford the exorbitant over-inflated costs) while trying to relive nostalgia.

It’s also interesting seeing the discrepancies in prices across different consoles. I own the same game on both PS2 and GameCube. The PS2 version would only sell for ~$30, but the GameCube version would easily sell for closer to $150. Simply because the GameCube version wasn’t as popular, so there are fewer copies in circulation. It’s functionally the same game, but because the PS2 dominated that console generation there are more copies of PS2 games in circulation.