As I said, I'm ambivalent about it overall; I do not like the regressive nature of it, but I oppose it much less than the general sales tax. Unlike general sales taxes, which discourage people from taking an action beneficial to the economy, at least this one discourages people from doing something harmful.
But the thing about it is that it's
not really a regressive tax. It is in the sense that poor people pay a higher percentage of their total income than rich people do, all things equal, but the amount you pay can also be controlled by how much you buy.
A cigarette tax is not something that I would actively pursue, but it also is not something that I particularly care about.