So here's my RX 480 story.....
I bought the MSI RX480 from OCHQ at the end of Novemeber last year for £255. I (after 3 months) got £48 cashback from MSI and the card came with CIV VI which is basically a £50 game that my son wanted for Christmas anyway. So I'm effectively down to paying £157 for the card. Great deal. K'ching.
I bought a 34" Sammy CF791 last week as I needed a super wide screen for work purposes (no honest, I actually did and that's what I told the wife, so I'm sticking to this story) , it's fab!! The 480 seemed to run pretty ok, I'm not much of a gamer tbh but like to take Project Cars or Assetta Corsa or Dirt rally for a spin now and again.
I then read this thread and thought "crikey" (it's a family show), these cards are selling for silly money so I promtly stuck it on the auction site. It got to £310 quid when 2 days before the auction ended, I realised that in my excitement, I had screwed up and left international postage as an option and the highest bigger was a guy in Russia with 4 feedback. I'm soo not sending this card to Russia... The same evening, Etherium dropped 40% (or whatever it was) so I bailed out and pulled the auction as I was thinking (as I think others mentioned here), if/when the bubble burst, (unscrupulous) miners are just going to milk the paypal buyer protection and return their cards. Plus, we'll end up with a glut of 480's on the market which will drive down the value of my card and they will end up selling for £140. Plus Nvidia and AMD are planning to bring out mining cards as well which won't help the resale value of my 480. Sadly, pulling the auction means I will have to pay a big chunk of fees which is "disappointing" but serves me right. Live and learn.
Sunday I had a punt and put it on Gumtree, asking for best offers over £280. Despite noticing that even yesterday, folks are still paying £330-£400 quid on the bay, I had I decided I don't want the hassle. I've been using the auction site very successfully for years without problem and with 100% FB that I want to protect. So I decided not to be gready and sold it on Gumtree to a very nice chap for £280 today. Meantime, I had bought an utterly mint (5 weeks old apparently) 1070 G1 for £370, which powers my new monitor very nicely indeed. Only now I have a Freesync monitor and an Nvidia card ! but for the gaming I do, I think this will be fine (and I have read that the freesync implemetation on this monitor is not without problem).
So I ended about £83 quid up on the 480 (taking everything into account) and got the 1070 G1 for £73 quid less that current list price (albeit without warranty). That'll do me for now.
[edit] oh and the day that Etherium nose-dived, I dipped my toe in the mining malarkey (for about 4 hours) and nicemining said my 1070 would net me £3.70 a day and my 2500K about 15p! I probably caused the crash by scaring all the miners away..