I'm looking into getting a vapor brothers vaporizer this weekend. From what I've read they work marvelously. They use convection style heating, warm up in 2-3 min, are pretty discrete, and the only part that touches the weed is the whip (basically just a breathing tube) which is removed from the rest of the machine when not in use. It's price around 120 but that around the price of a nice glass piece so I figure its a resonable price to pay. I'll update this weekend after I get it on how well it works.