You would get Paypal offers even if you were asking $500. This is primarily because those people have no intention of allowing you to keep the money. They will try to figure out a way to never send it, and even if they do it will lead to a chargeback. I've gotten some ridiculous offers on things in the past and it gave me false hope that the market was going to play in my favor. Don't allow your card to gather more dust, let it go for $250; at least reconsider your stance on the price, because it's only going to to get worse from here (in terms of market price).
The scams of ebay are what causes the prices to be so high there, Amazon is mostly people looking for extraordinary profit, Paypal offers lead to scams... It paints a pretty bleak picture, but the combination of BTC price being so low and the 2080 not being released yet will allow you to get a decent chunk of coin right now if you allow it to happen.
Card is sold for 360$ and shipped a few days ago,
250$ is dirt cheap, you and i both know you will never get a 1080 for that price, and the cards will not get cheaper, you want to buy a 2080? Buy it. Pay 850$ for a 20-40% ( or even lower) bump than a card being sold for 350$ , hell buy it for almost the same performance as a 1080ti thats sold for 450-500$.
The market will not play in your favour on this one dude, a gtx 1080 will never be 250$ anytime soon if it ain't a sketchy as fuck deal.
It's all about point of view my friend.... when I sold one of my 1080tis for 0.0625
BTC and
BTC was $6500.00, the end user got a fantastic GPU for $400.00. Fortunately, I don't have to sell that
BTC. I can hold onto it till
BTC hits 10k again, then I got $625.00 for it.