There's an interesting article on Eurogamer in which the author shares his views on games that last for only 2 or 3 hours but look extremely rich in detail (think Killzone 2 video or better here), do have deep gameplay, but generally only take 2 or 3 hours to complete.
In the article, the author states that this would also solve a growing games development problem. The more detail is put into a game, the more time it takes to develop. A game with the detail of the Killzone 2 video is technically possible, it would just take so much time to create a full length game with that amount of detail, that it's not realistically possible.
The idea is to sell those games at DVD prices as well (for $20 or so). If people buy DVD's which they're done with in 2 hours, maybe less, then why wouldn't someone shell out the same amount of money for a game that lasts that long?
I find it an intruiging idea. It might actually work. And when people shell out 60 dollar for a 10 hour game, then they could buy 3 games of 3 hours each for the same price as well.
What's your thoughts on this? Are long games automatically better or are short games at a really low price point the way to go?
Interesting view on "DVD-length" games
But you don't have to buy $300+ video cards & CPUs, and $150 motherboards every two years to watch the lastest DVDs. 
To have such a graphically rich game, you need an expensive PC. If I'm going to have that, I'd rather pay twice as much for a "full length" game with good multiplayer. I rarely buy games when they're the full $50-55 anyways, usually $40 at most. So the savings isn't even that good for the software, and you're still paying just as much for hardware.
edit:
Now if it were console games...maybe. One $300 console (or $200 if you wait a year to buy it like I did with the PS2 & XBox) every 4-5 years aint so bad.
To have such a graphically rich game, you need an expensive PC. If I'm going to have that, I'd rather pay twice as much for a "full length" game with good multiplayer. I rarely buy games when they're the full $50-55 anyways, usually $40 at most. So the savings isn't even that good for the software, and you're still paying just as much for hardware.
edit:
Now if it were console games...maybe. One $300 console (or $200 if you wait a year to buy it like I did with the PS2 & XBox) every 4-5 years aint so bad.