It is not necessary to speak, that occurrence of strong competitors in manufacture of high-perfomance graphic decisions for VIA and nVidia is very inspiring. I mean recent announcement of XGI (as far as I understand, it is SIS follower), and the DeltaChrome mentioned in a clause.
The similar situation can be seen also in the market of PC processors, in which the competition between Intel and AMD has become aggravated. All this conducts to improvement for consumers as productivity raises, and the price (because of a competition) does not increase or even decreases.