OK, I'm a complete newbie here, and my first starter kit hasn't even come in the mail, and until it comes I'm finishing the last of my rolling tobacco and using gum, but it seams like a lot of you are being pretty nasty towards this guy who was just asking an honest question.
To me it seams like the original poster probably wanted to start vaping for social reasons, that is, to have some kind of excuse to hang out with smoker-friends when they all went out for a ciggarette (just a guess, but the fact that you smoke hooka makes me assume so).
Personally, the reason I started smoking in the first place was the "smoking culture" which was basically that I had a bunch of friends who smoked, and I would always join them outside for their cigarette breaks, which gave me an excuse to move around, get some fresh air (ok, there was second hand smoke, but at least I was outside) and everyone seamed to be alot more socialble because they all had something in common (being addicts -but still it formed a positive asociation)...needless to say I eventually tried a cigarette and I liked it, and cigarettes became asociated with actually being productive, happy (smoking worked much better for my stress/anxiety than any perscription antidepressants/anti anxiety meds I've been on), romance, rock concerts, and numerous other things that I'm sure alot of us got very centimental about.
That being said my arobic capicity is **** compared to when I started. When I was having under 3 a day or not smoking I could easily bike 14-15 miles in less than an hour, do 6km of rowing in about 25-30 min, do that crazy cardio kickboxing (even though it's kind of chick stuff it gets you fit as hell), and stay in a very, very, very active mosh pit for a whole 1 and half hour set with no breaks.
Now that I've gotten to 1/2-1 pack a day I can only bike about 8-10 miles easily, row for 4km in the same amount of time, and I need to leave the mosh pit about every 20 minutes and take a 10-15 minute break. I am not happy about these things.
Personally, if I could have kept that social aspect without inhaling tar I would have been much better off.
To the original poster- it's your personal choice, but like I said, I'm a newbie, and the other poster's advice is probably much better than mine. Also, the social aspect is not universal. Being a rather steriotypical art student, the "smoking culture" I described existed for me.
But it dosn't in alot of circles, and smokers will not shun you because you don't smoke unless you get preachy, make annoying comments, pretend to cough, or generally be annoying. If you are already friends with a bunch of smokers you won't become better friends by starting smoking or fake-smoking. While I like smoking culture, I didn't actually need to start smoking to join.
The fact that I am now also smoking didn't change anything, except now I get to join them in thier "I don't have enough lung capacity to keep moshing" breaks too- and thats not fun at all.
I hoped that helped. I do not know much about vaping, but the social aspects of smoking are something I'm fairly familiar with.