That's not too big advantage - e.g. the major problems with GPU drivers don't seem to be caused by too many companies producing them (2 or 3 depending on how yo

That's not too big advantage - e.g. the major problems with GPU drivers don't seem to be caused by too many companies producing them (2 or 3 depending on how you count) or too many models (new architecture appears only once every couple of years). (I won't trust myself to speculate on what is making GPU drivers so difficult to get right)