granted i smoke once a week...but it's gotten regular smokers 'ripped' after a couple of tokes, and one chronic smoker had to pull his car over.
imo the %thc race is masturbation. nl#5 is ~14%thc but has a debilitating, paranoia inducing high. i don't think if it's one or three tokes is really an issue. people like passing the joint around a couple times, and it's easier to measure out a happy dose. everyone is going to smoke as much as they need to get to where they like. it's not likely nowadays to buy seeds that are so weak that you can't smoke enough to get high. i had some pot that didn't get ME very high, and everyone still raved how good it tasted.
imho the real issue is finding a high that you enjoy, is potent enough to get you there in a few tokes, smells and tastes good. if a potent cultivar still doesn't get you high because your tolerance is so high, smoke less. the upward spiral of more and stronger pot and higher tolerance eventually collapses...or moves to other means.