A social network with other smokers in proximity. Regular breaks from work that they don't forget to make. Regular time outside of a sealed office space..

There are definite short term advantages to smokers. There (_)used to be similar short term advantages for those who drank during work hours when it was socially acceptable.

(_ Used to might be wrong.. Startups with designated drinking times that seem to be mandatory are annoying but not irrational given their short term interests.)