RTX 3080 over 4070 ?

Hi there, as far as i researched , 3080 is identical even in some cases better than 4070 for 1440p gaming , so thing is , i can buy unused and sealed 3080 10gb for 450€. 4070 is 200-250€ more expensive. From second hand i found used 4070 super for 600€ and still in varanty 2 years. I know , 3080 have a bit more power consumption but im really considering it as i think price is lucrative in todays market of expensive gpus and also i dont think that on 1440p i will be short on 10gb vram in the next 2-3 years.

I want to build new pc soon on am5 but im still not decided for which gpu to go for. AMD is not a option for me as fsr 4 will be only for rdna 4 now and i dont want to spent 1000-1200€ for xt version and also dont want to go for rdna 3 cards( rumours has it that retailers will put these prices on them , also i have friend who works in one of the big shops here and he told me that this is true )

Whats your thoughts on that ?