It's a good time to SELL GPU's.
September 2017: I bought at MSI Duke 1080ti for $660 USD.
Today: I sold that card for $630 USD
This, after flogging it mining 24/7 for 11 months
Gamers are buying up 1080ti at the moment because 20 series is not great value.
Yeah the 1080ti has risen price wise.
As the 2080ti is running 1200 to 1400 usd.
I think the 2080 will be good value.
As for buying I am getting Msi Vega 56 new with warranty for 400 to 475.
I bought Vega 64 at $550 on sale thanks to recent GPU price drop. It's a good and cost effective replacement for my 1080. Combine it with Freesync monitor and it will be more awesome.