I buy all my laptops used. The last one I bought for myself on Ebay was a Lenovo Thinkpad T490 still in the box. Then, I got 4 more used laptops, three for my kids and one for a friend, from a guy on Next Door. He was starting a little business reselling off-lease laptops from companies. They were Dell Latitudes 7490 models, which are almost identical to Thinkpads T490, and in pristine condition. I paid no more than $250 each.
I always buy business grade laptops like Thinkpad T series or Dell Latitudes. I've had Thinkpads last more than 10 years in excellent working order. They will outlast a cheap laptop from an outlet store in performance and upgradeability.
FYI. Part of my job is to procure all the hardware for my department at work. For work, I also order Dell Latitudes directly from the factory.
If you like, I can put you in contact with the guy who sold me the 4 Dell Laptops. He'll probably ship one to you for $25 to $30. I couldn't believe the ones he sold me were used.