First I know how difficult it is to stop. But it's worth it. You start feeling better in three days or so - not in terms of cycling performance but more like you're free of a shackle. It takes. Few months before you realize an improvement on the bike. Then you feel better all around because you don't have the burden - financial, nasty habit, the smell of smoke, the shakes lighting up after a long time, the need to get out of a building to light up, etc.

When you do stop, reward yourself with a new bike.