I'm exemplifying an old card (960) that run much newer games well because you just didn't elaborate how your 1660 is so bad.

But it doesn’t run much newer games well at all. You listed two games as examples and one of them it doesn’t even meet the minimum requirements. The other one it barely meets. You’ve literally proved yourself wrong. The current recommendation for VRAM when playing modern games has been 8gb for a couple years now and it’s trending more towards 12gb now. The 1660ti only has 6. The card is just lacking, there’s nothing to be fixed.

And cards are not that expensive anymore. At least not here. A sub-$200 card can definitely be had that supercedes a 2070.

They are still very expensive here in the US, and they don’t drop much in price after they age. If I go on Newegg right now and filter GPUs to $200 or less the best Nvidia card on offer is a 3050. A generation newer but two models below the 2070. You’re just making things up to prove your point but everything you say is just verifiably false lol. It’s like you’ve been thawed out of a block of ice after being frozen for 6 years and you’re not adapting well to your new reality.

And yes, it’s objectively not worth it unless you specifically want a gaming PC. If you’re in a position where you’re comparing a gaming PC and a console though, dollar for dollar, console wins. It’s just basic math, I don’t get what’s it’s so hard for you to understand.