Smoke 'em if you got 'em

I have two wishes regarding state taxes.
One is that the Legislature will dramatically increase the state’s tax on cigarettes, which currently is an embarrassingly low 69.5 cents per pack. The other is that the state will completely remove its sales tax from groceries, which currently is 1.75 percent, and which hurts low-income people the most.
But I wouldn’t dream of combining the two. Unfortunately, that’s what Gov. Jon Huntsman Jr. wants to do. His proposed $3 a pack tax is being billed as revenue neutral.
Well…
Every time the cost of smoking rises, there is a noticeable dip in the number of people who smoke (Here’s a news story to back that up). Heck, maybe even Barack Obama could be persuaded to quit.
But if you rely on tobacco taxes both for public health reasons and to fund state government, what happens if a lot of people really do quit? Which “sin” do you then tax to make up the difference?