i buy most of my PCs now from Ebay s/h find the PCs are very good ie HP /Dell PC 32 gig ram Windows 11 1 TB and 250 gig hard drives £180 I have 2 of these now find them excellent value they work well and very quick and cheap
From a security perspective (particularly because mine is used for work), I'd not want to use a PC/laptop that someone else had owned.