My point is, the author grossly exaggerates the problem. There are large players dominating every industry (for now, those change out over time), and then there's myriad smaller players in most industries. I don't find anything unusual about a concentrated group of power players with the best offering at the moment gaining majority of market share, and a diversified group of secondary players that aren't as competitive.
I don't know anything about video cards, but here's the Wikipedia List of video card manufacturers. I assume some of these are not "real" but there's a lot of brands I recognize in that list.
Some of those are defunct like Hercules and S3 graphics. Some of those don't make cards either anymore like Diamond and EVGA. And most of them don't make their own video chips but assemble boards from AMD/Nvidia and I guess Intel now. So depending on how you define video card manufacturers there may only be 3.
I don't know anything about video cards, but here's the Wikipedia List of video card manufacturers. I assume some of these are not "real" but there's a lot of brands I recognize in that list.
Asrock,Asus,AMD,Biostar,Chaintech,Club 3D,Diamond Multimedia,ECS,ELSA Technology, EVGA Corporation, Foxconn, Gainward, Gigabyte Technology, HIS, Hercules Computer Technology, Inc, Leadtek, Matrox, Nvidia, MSI, Palit, PNY, Point of View, PowerColor, S3 Graphics, SapphireTechnology, SPARKLE,XFX,Zotac
You may not want the inferior video cards manufactured by some of these players, but that's a different argument.