I think part of it is attitude.
My first and only other quit, I always felt like I was "missing something".
I quit with the full intention to moderate after I got the situation under control...like that ever happens.....
This time, I have decided that I am not missing out on anything after all, and things are so much better without alcohol. I feel blessed to have been able to get off the poison and have absolutely no desire to pour poison down my throat and ruin my life.