I usually play a few hours a week. But it seems kids these days play a few hours or even more every day. Personally I enjoy playing quake in small dozes but when it comes to "official" training after a few days of constantly playing I just feel so sick of playing that I take a break for a couple of days, or even weeks. But the main problem remains. If you don't go for a few hours every day, you always find these 16 year old boys who do, and own you if you come and play (let's call it...) "unprepared". And let's face it, as many people said, the skill is so high that there are no more gaps in these matches, which gives a big advantage to daily playing against experience-in fact, what better prove we have than these kids winning eswc masters and gamegun? I personally dislike the things were going on here, whatever other people think. Seeying av3k and cypher winning these big tourneys made me think "wtf? The most important factor to win a major q3 tourney is age now? The younger u are the bigger chances u have to win?". And please don't tell me these kids play better than czm used to play on aeroq for example back in 2004, because they don't. Or maybe is vq3s fault, a lot of people find vq3 having pretty different gameplay than osp, dunno.
My conclusion is whatever the causes, you can't force other people play less than two hours a day, it would be absurd. But the problem which appears is when all people play for many hours every day, like these kids do, all matches become the same, originality is dying and so the manifestation of personality. It's like in other aspects of human nature, the first inventing some great thing is an explorer, while the rest, the more they do the same the more they become close minded. It's called human paradox maybe. A little more is better, but much more, despite the fact that it improves yourself is just killing your perspectives. So I preffer playing a few quake3 matches online, then if I feel I want to play more quake3 I go and kill some bots (right now I am on my way on playing the SP on "perfect"), then play some quake2, qw, or even some strategy games, than spending 5 hours every day on just one game. Finally, if you spend that much time on one game, you loose the taste of fun and the time you invest in it, even if you'll be number one some day, considering material benefits you got by doing this, don't worth it.

PS: about our old champions, you people should just stop talking how czm is no good anymore or cooller or z4 are crap these days, and lolling at american quake3 scene, they all were winning great tourneys and they might win again, maybe they just don't spend so much time anymore on playing like these little kids do; you should be glad to see them participate in these competitions; also americans did not have such a big q3 online scene for the past 3-4 years, so it is perfectly understandable why they don't do so well; and after all, they always did better when they played in USA, so we'll see in there how things will be