This is my story, too. I'll have a few if I go out to a bar, but I'm done doing that shit all the time; having to go outside when I'm home, in my car, sneaking out at family gatherings, etc.
However, if I were to return to hanging out at bars a lot, I would absolutely become a full time smoker again.
What is more expensive for your organization: time or money? In general, your options that cost less take more time to setup, and vice versa.
It seems like cheap is more important, so I would roughly do: