Well, first of all just remember that the "buzz" that we crave is an illusion. We go from Sober to Brain Dead drunk. So this middle-point tipsy all happiness does not exist.
I am sure you're reading a bunch of these comments that might **** you off and it's not what you want to hear (not that they are not true).
But the hungover, the pain, the self loathe, the depression, it's sooo time and energy-consuming. And let's not lie to ourselves, you know you'll need to hop into the wagon again, it's not like "we're cured".
My point being is that, regardless of its worth or not, climbing the ladder again and going through allll of that is so energy-consuming, hard and boring... that why even bother taking just a drink.
P.S: I did the stupid thing of taking that drink and I'm doing it all over again. Trust me, it's not fun whatsoever.