The only reason I don't now is because I get paranoid. I get these odd irrational fears... one time I was convinced that someone else was in my house. (Don't ask why).
So when I wanna relax and mellow out, I drink a few beers.
I'd prefer weed, though, because I have a very creative mind, and when I smoke it... things take on a whole new light. Music sounds totally different. I hear/pick up certain things I would never normally hear when I'm sober (certain sounds, patterns in music, etc) I really enjoy reading when I'm stoned - I could read for HOURS and just soak up anything and everything. There was a time when I was 18-19 where I smoked it several times a week, and when I was stoned... I read nothing but technical books.. C++, code design/analysis, theories, etc.. (retained 100% of it too!)
When I'm sober, I have a habit of letting my mind wander when I'm reading, but when smoking weed.. wow, I could concentrate like you wouldn't believe.
Not only that, but I come up with questions and ideas for things that I'd never normally think of when I'm sober.. my blood pressure was a lot lower during that time period too
Contrary to what most believe, it's not really that bad aside from the fact you're actually smoking something and getting shit in your lungs.
[edit]
I also hate people who are 100% against smoking weed, but see no problem with getting drunk.
Well, let me rephrase that: if you are outspoken and go around saying, "What's the point in smoking weed? It's stupid." and you drink, then you are retarded. If you drink and CHOOSE not to smoke weed, but have no problems whatsoever with it in general, then you're fine
