Well, 1080/2080/3080 go to 2080/3080/4080 and 1070/2070/3070 go to 2070/3070/407...

Well, 1080/2080/3080 go to 2080/3080/4080 and 1070/2070/3070 go to 2070/3070/4070 and so on. Even though, Nvidia shifted their tiers a bit.

Not everyone is buying the best and latest. Plenty of people wait for previous gens to drop in prices or enter the secondary market.