This is so true. I'm not a smoker, but cigarettes are a great example of this as they are often sold as "tax priced in" because they are taxed at such an extra high rate compared to standard sales taxes.

As an example; the sales tax rate in my region is 7%, but cigarettes are then flat taxed $1.36 a pack so roughly 20% tax at the state level, plus often times there is an added "local option tax" which adds on top of this.