I switched to a vap last year and haven't rolled a j since. After seeing on Manswers that vaporizors deliver up to 90% of the TCH compared a joint (20%) or a bong (40%). I wanted one that was really easy to use and portable enough to use at the cottage. The one i use is powered by ordinary lighter butane. My guy loves it as he is a non-smoker and the vap leaves NO smell, which he hated.
When I bought mine it was off ebay but lately I've seen them in local head shops. It was the best thing I've ever spent money on!
Highly recommended.
My iolite, The Next Generation in Portable Vaporisers. Portable vaporizer sales