Trying to figure out what my red lines would be.
I have a 3060ti FE, £380 back in 2021, which is £450 today adjusted for inflation.
7900 GRE is around +50% performance, and lets call the average current price £550, so +50% performance for +22% price.
If the 9070 is +20% over the GRE, that would make it +60% performance over my 3060ti, and would therefore need to be +26% price max for equivalency (£570)
If the 9070XT is +40% over the GRE, that would be +70% over my 3060ti, meaning a price cap of +30% (£585)
This is obviously only a look relative to what I could currently pick up a GRE for, but I certainly wouldn't be touching them for anything above £600.
The 5070ti seems to be around +120% of my 3060ti, but with the cheapest currently being £800, that is +78% in price.