yeah, my stash lasts a while. but then again, i think it's the conditions under which we smoke. like aggressor said, sometimes you can only smoke 3-4 days a week (sometimes less) even if you do want to smoke more. i'm a full time student working part-time and sadly there are just sometimes when you can't find the time to get high
but all in all i'd say a quad will last around a month, month and a half.