How many hours actually they clock that is important. Out of those 48 hours, almost half will be gone towards sleep, bath, eating etc. And if they are students, weekends of at least 2 months will go for preparation of exams, meaning no or lesser gaming. And there will be a pretty significant difference in power consumption while playing CS as against BF3.
Buddy again I am not talking about college students.. even you said a college student cant afford high end cards. By your logic they wont be able to buy a 30k card too.
As any highend card this not one for masses.. but for enthusiast gamers. The thing is wether it is more vfm than a 690 or 7990.. a college student would never dream of getting them, if he has no time....
Please find me a serious gamer who sleeps more than 6 hours a day.... also a college student who is very much into games and is more into studies than games. Heck even I was detained for an year in college for bunking exams, playing games. And I know many kids doing the same in gaming zone around the city (Hyd).
Any serious gamer would log 6 hours easily every day and Yes during weekends we do play for long hours sometimes 18 hours. You just need to pause the game to go to pee or eat. you dont shut down the whole system..
Dont you have any friends who are into CS, DOTA, BF3 etc.. ask them how long they play. I am talking about serious gamers... not casual gamers...