At this point I miss the social aspects more than anything. It is nice to just step out with a few friends and chat for like 5 minutes.
I never experienced relaxation or pleasure from hurriedly sucking down a cigarette. I only experienced a nicotine high with the first cigarette of the morning, never with any subsequent unless I waited three hours for the next. A nice cigar on the other hand, that always resulted in relaxation, but that had more to do with the environment which came with the territory: a stick, an easy chair, some Blues emanating from my eighties-vintage Infinity speakers, and a pour of GlenDronach went a long way toward taking the edge off even the worst of days.
I don't miss that aspect as I'm a bit of a misanthrope on jobsites - smoking was something I'd do alone at work to give myself a break from having to deal with the ego battles that are part-and-parcel to building trade environments.