Well in terms of dGPUs I saw mates actually purchase this generation - RTX3060TI/RX6600/RX6600XT. All for between £330~£420(top end was an AIB RTX3060TI),but some of them had owned £350 class dGPUs,or keep stuff for a long time. Think the RX6600 and RX6600XT cards were all below £350.
People have sort of forgotten the RX480 8GB and GTX1060 8GB models once you got outside the initial launch stock of reference models were around £250ish,and closer to £300 for fancier models. The RX480 4GB quietly got supplanted by the RX470 4GB and RX470 8GB.
The RX5600XT was £280~£300 as it was fighting the slightly more expensive RTX2060. But the reference cooler on the RX5000 series got such a bad rep,the reference RX5700 was as low as £250ish at one point(and cost less than an AIB RX5600XT!). It was the best bargain of the Turing and Navi MK1 generation IMHO.
The RX5600XT/RX5700/RX5700XT were all using 250MM2 sized dies - the RX5700 series were really the replacements for the RX480/RX580 in some ways. Just you need to thank Nvidia for the initial Turing launch which allowed AMD to compete with their Polaris replacement at a much higher level than before.
In some ways the pre-2021 Ampere launch was closer to what Turing should have been. The $399 RTX3060TI was what the RTX2060 Super should have been,ie,a 104 die. A 104 die was used by the $330~$350 GTX970. The Turing price escalation is there,but at least you got a higher tier chip.
But post 2020,the entire line-ups have regressed to a worse level than Turing and that is saying something!