Personally I don't onw a vaporizer but I have relatives that have purchased a few. I have a cousin that purchased the volcano and that has been by far the best high I have ever gotten. Nothing but str8 THC.

My freind bought a cheaper type of vaporizer (I even forgot it's name) but it wasn't all that great.

It is also my understanding that for the volcano you will need extra bags at one point, and not to mention you do have to clean it every so often (not sure if you will need a cleaning kit for the volcano). Personally, I would love to own a volcano, but the prices are ridiculous. But to be a healthy smoker, it's worth every penny.