well it's just alot of THC gets lost... it basically combusts... i think a volcano vaporizer or a Super Vapezilla vaporizer ( both $500 ) is a good investment for people who smoke more than a ounce a month.

I've talked to people who use the volcano, they say they used to smoke 3 grams a day, but now only smoke about 1.5 grams a day because the volcano vaporizer works so good.