I've joined a few stock alert pages and Scan had 3080s earlier this month on two occasions I believe.
I don't need the 3080, but it's significantly more powerful than the 3070 and I think i'd notice the difference playing heavily modded DayZ servers in 1440p. FPS can drop to around 50 in heavily populated places. Now I've had a taste of 140fps I've found myself turning my nose up at anything less than 100.
Fair, I suppose if you have the spare cash lying around then why not!
Upgrading your RAM could be a good shout too. I have 16gb which is good enough to see through all games atm, but seen some recent releases (Icarus) and upcoming (new Chernobyl game) recommending 32gb which is crazy!