Pretty expensive compared to pot. $20 to $30 a gram. I buy 5X fortified leaves on the internet, 2 grams for around $36. You got to be careful, a lot of websites sell crap stuff or charge WAY too much. If you're paying $30+ for a single gram you're getting ripped off.

A word of warning; If you shopping for fortified leaves the initial shock of how small a bag you're getting for the price may turn you off. But it's well worth it because salvia has an afterglow that can last weeks sometimes. I usually smoke a bowl or less on a Friday night and ride the euphoric feeling till the next weekend rolls around.

Not much else I can say. I don't know the going rate for just plain leaves, I only smoke fortified leaves and I stick with 5X. They sell 7X, 10X, and even stronger, but to me 5X is more than strong enough. The other stuff is just a waste of money and the higher the X-factor, the crappier it burns.