Lovelace is basically Turing all over again where the only GPU that's arguably worth the price is the 4090. The rest just feels bad to buy because the performance you get for the price is bad. I am sure that just like RTX 3000, RTX 5000 series will go back to normal assuming the crypto boom or something else doesn't start buying GPUs in droves. It's one of the main reasons I bought a 4090 since over a 3090, it's 70% gen on gen uplift in Raster and 80+% Ray Tracing while having copious amounts of vram and DLSS features. If you are targeting below a 4090, I'd just wait for the refresh or wait till next gen. Cause the GPUs are getting discounted even if it's slowly.
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850