I got an old gaming laptop on eBay for like $300 that I take with me on work trips. The person just upgraded or something and wanted to get rid of it.
I know people sometimes have bad experiences on ebay, but I feel like if you message the seller and feel out the situation in advance, you can avoid a lot of the problems. I always try to buy from individuals vs. from someone whose entire business is selling on ebay, and I’ve never been burned.