I see...so the people who don't spend hundreds on their video cards aren't "real gamers" now. In combination with the "your not a PC gamer so you don't know about tech" comment you made, I see where your coming from.
I dont think that the distinction he makes is related to "tech knowledge".
The distinction he makes is in relation to the type of games played. Usually those that play games such as COD, Mass Effect, Diaplo 3 etc are the people more likely to be dedicated gamers and thus more likely to want to spend more to get a certain performance.
I know where he is coming from because I see often people who although arent videogame fans or even hate videogames, often "game" on social networks like facebook (See farmville) or on games such as Sims. They kill time with non-demanding past time interactive software. So performance becomes irrelevant. Many of them dont even consider their selves gamers to begin with.
The COD, NFS, Mass Effect, WoW(etc) guy play more demanding games and will invest on more expensive hardware, not necessarily top of the line, but certainly hardware that performs very well. I wouldnt say that all of these guys play on 2TF GPUs and anyone who doesnt he is a Sims guy. Thats maybe a bit extreme. Less powerful PCs also perform at satisfactory levels too for more serious games.
But it would have been interesting if a survey was made by a company to collect statistics