I get you. I was doing the same starting from riva tnt2, GF 6600gt gtx285, gtx 970 and now 3080. I'm thinking to get 4xxx series ONLY IF it will consume less energy. I'm really unconfortable with this 350+.Not likely. I update around every six years.
Went from a 780GT to 8800GTX to 280GTX to 980GTX and supposedly a RTX-3080. This means if the pattern follows, my next upgrade will be a 6080. If I get my 3080 before they are launched.
I know this can be funny for some but for me is a big deal