Used Shoes from EBay

What’s up sneakerheads, I have a question I’ve been browsing eBay for a few shoes I deem as grails. How do you all feel about used shoes in great condition over a DS pair? I think about it like this a good pair of shoes only have so many wears in them so getting them used subtracts from that number. How do you all feel about used kicks? Does it depend on the price or how good the used pair is? I'm curious.