Some people that sell older sound cards or hardware that are as-is would sell the system or part for about $5, then they cancel everyone's orders, up the price to $50 starting bid, no reserve, buy it now, or even make an offer. If someone did that to me, I'd file a complaint and get them taken off for good and banned permanently as well. Unlike some people, I have parts to buy for my car and save a few coppers and bills and purchase some used parts, such as a CD drive, sound card, anything. Thrift stores, too. I was lucky to get a 486 for $17, which might be worth more than that after upgrading and installing hardware that I have (CF-IDE adapter, backup tape drive, CD ROM (not period correct), dual floppy drive, 3 sound cards + DB50XG Daughterboard, 1 Ethernet card (original owner added that), DX4100 OverDrive, and 32MB RAM)
Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser