I'd like to add the Vriptech Heat Wand 3.0...that's the closest you'll get to a bong hit. There's the VapeXHale Cloud Evo and the Sublimator but they're both out of your price range and I don't think they are worth the difference...
I also have a Solo for my portable use. I'd say I've had both for a good 3-5 years and surprisingly they are still "up-to-date". And I'm very happy I purchased those vapes as opposed to other vapes I could of gotten at the time.