Nope... don't miss it.  Don't miss getting ripped off. Don't miss not getting any sleep. Don't miss worrying about getting busted. Don't miss worrying about falling asleep when I'm on the freeway. Don't miss worrying about getting hurt & having to piss test when I know I'm dirty. Don't miss worrying about friends & family finding out I'm spun. 

Don't miss any of that.

Those are the thoughts that I choose to remember about my using.