I think that's a unique 1-off situation or a very uninformed seller. I've seen brand new EVGA RTX 2080 Ti FTW3 Hybrids go for over $1000 recently. Used ones are going for $600~$700 for the past few weeks. How do I know? Because I've been watching all the FTW3 Hybrids on Ebay for weeks and just bought a 2nd one now for around $670 with some fierce bidding competition (has the original box/packaging/accessories, usually just the cards only go for the low $600 mark). I bought a 2nd one for SLI because I already know I probably won't get a Hybrid 3090 until the end of the year if I'm lucky and I just simply couldn't wait anymore. I'll upgrade to 1 or 2 RTX 3090's when I don't have to sit around and spam F5 all day.