The polls from Steam prove it again and again. Hardcore gamers have the latest graphic cards. They have better hardware than most of you developers.

But if you don't want to address hardcore but casual gamers then it can look a bit different. I don't know of any poll asking the usual pc owner about this. And this poll would not work anyway. My parents cannot tell you what hardware they have except they look into the invoice and spell it from that paper

But if my parents buy a new pc then it will have one of the latest graphic cards (but probably not an expensive version of it). You cannot buy something with shader 1.0 in Germany