A 3700x? That’s less than two years old. We’re also in a year+ long pandemic.

I was able to buy it a while ago but I paid a bunch too much. It’s the GPU that I’m hurting to upgrade.

I've basically in the same situation as you - same specs, based in central europe - and the GPU situation is dire. PC components places here are completely wiped out of GPUs. The RX580 is gonna be fine-ish for me for the next wee while, but I'd like an upgrade if possible.

I'm in the same situation (even with the same CPU and GPU)

My gaming PC is on a fourth generation Intel with a RTX 2080. Still enough to do >100fps in the games I play on 1440p.

I was looking at even a 1080ti and they’re > 500 euros here in Germany! It’s ridiculous. I mean it’s an amazing GPU but it’s 2 generations old now.

In Austria even 1660s are >400 Euros. Try that for insane.

1080TI was one of nvidia's "mistakes" as it was ahead of its time in performance and VRAM size and was one of the reasons people owning it could afford to skip the overpriced RTX20X0 series and even the RTX30X0 series. That's why they held up in value so well, even before the pandemic shortages.

I could sell my 1060 6GB for roughly same price I've bought it back in 2016.

True. It really is a special card. Good thing is, at least for me, I don’t need a new GPU I’d just like one for higher fidelity in games.