A couple of things:
1. It's not a full priced game. It is sold at a bargin price, and has amazing graphics to show off the PS3.
2. It's been hyped by PS3 fans alot, and the company tagline is that it's a "full game," not a demo.
3. The PS3 didn't necessarily have a lot of good games when it was released. Again, it was very hyped.
4. It has been bundled which could have added as much as 25 percent of its sales.
5. It is Sony's most successful franchise, and one of the most successful franchises in gaming.
6. Racing games are repetitive. You just race the whole time. You race, build your car, race again. Where am I going with this? Well, when I think of buying a demo, a racing game is the only demo I would ever consider. If it has one track and one car, it is still very representative of a whole game, just sans other backgrounds, like tracks and car models. Basically, it IS GT5, just with less wallpapers to roll your car over. Anyone with a pair of gaming sticks realizes this, and thus believe the demo will give satisfaction where demos for story or narrative based games would not.
So yes, those are the reasons. :P
I don't need your console war.
It feeds the rich while it buries the poor.
You're power hungry, spinnin' stories, and bein' graphics whores.
I don't need your console war.
NO NO, NO NO NO.
