I did the math. Pack and a half a day was costing $300 a month, and all I got out of it was temprrarily not needing a cigarette.
I actually quit once before, in 1999. I got stupid drunk with a bunch of smokers and got hooked again.
Although two beers and a puff of reefer does usually get me started writing. I think the pause in the muse is from breaking the routine; the cigarette break.
I got over it before, I'll do it again. Oddly, the first time I quit it didn't affect me as much. I wrote "How to quit smoking cigarettes" in 2003, posted it on K5 (back before it was a ghost town) and if you googled anything about quitting, it was the first hit for years. It must have been pretty good, It's in my latest book.