It's not just that. Most businesses have contracts with one of the large computer manufacturers. These contracts usually entail the business to purchase new computers within a set period, usually a year. These purchases are necessary, whether the computers the business is using are really outdated or not (most are just being used for word processing or accessing a server, they don't really need all the power available to them). This increases the net sales of these integrated video cards by absolutely massive numbers. We're talking in the hundreds of thousands of units, even the millions. Think of this market as the consumer market (which Ford fit into, and 99% of people fit into). Obviously, even though we know Ford sucks (being Ferrari drivers), people still buy them because they are cheap and do what they want.
The enthusiast market, which we belong to (and what Ferrari belongs to), is what drives the need to ever increase the speed of all computer hardware. Like Ferrari, it's admired by all, but very few are members. Be glad you're a member of the elite.
2500+ Barton 191x12@1.85v=2293mhz
Tr SLK-800
Tt Smartfan II
A7N8X Dlx
2x512MB Corsair PC3200
BBA 9700 Pro AIW
2x80GB 7200RPM Maxtor
Guillemot Game Theatre XP