vintagecomputersforsale.net/how-to-make-money-with-vintage-computers/
Selling or buying old computers can be an excellent way to turn a profit. You can find the best price for your equipment if you find the appropriate buyers, whether you want to sell an entire system or break it into smaller pieces.
Computer stores that sell used items are a great option for those who want to trade in or sell a system. They are usually certified and offer warranties and refunds. They may offer a greater range of used computers compared to online marketplaces like eBay and Craigslist where it’s difficult for buyers to filter out sellers who aren’t transparent about their equipment’s condition.
Be honest when listing items for sale. Include any hardware issues (such as a cracked screen, or a scratched case). It’s also recommended to clean your computer and reset it in the event that it was previously owned by someone else. It is crucial to ensure that the computer is clean of any keyloggers or malware that could have been buried by previous users.
Swappa is an online marketplace that lets you trade gently used computers. You can determine the price and be paid instantly through PayPal when an item sells. There aren’t any listing charges, but you’ll be charged an amount after your computer sells. OfferUp is another alternative that lets you pay in a flash without the cost of fees for listing or selling.