I think you might have taken the RTX30 prices actually gone down against the 2090ti significantly as being the norm. it is not. everything like literally everything not just cumpting stuff, food, fuel, cloth, properties, go up with inflation and by your standard, we would still be paying £50 for a CPU cos that was how much it used to be like 20yrs ago but having current performance.
C'mon man, the only time you can compare price for value for a new product vs old product is MSRP vs MSRP at launch. as i said 3080 is a anormaly where the bang for buck dropped masively if you go to all the youtuber's videos about price/Frame analysis, those are based on launch prices not the current retail.