I've used both models. The Vapor has an all glass vapor path and the AIW bowl is especially nice since it does away with tubing. Also a good portable choice since it's 12V and a battery pack is an option. The bowl is narrow though, and uses no screen, so loading is more difficult than the norm. A great choice if want portability, and they're going for $110 on eBay-a great price.

The DBV is hard to beat in this price range, for a home vape. I'd buy from vaporstore for 10% off (vapormovement code), or eBay-as low as $155 or so.