I'm going to go straight to the point on this one. In my opinion the best vaporizer for the money is the Extreme Q by Arizer.
Priced at $299, the Extreme Q isn't the most expensive vape, or the cheapest. Vapes like the reigning champ Volcano definitely provide a solid experience, but I feel like dollar for dollar, the Extreme Q is a better vaporizer.
Some of the main features of the Extreme Q are:
-Digital display that shows current temperature (both F and C) and other information
-Easy to use controls
-Fan to fill balloons
-Remote control for the ultra lazy
-Most importantly: this thing will get you really high. Really high. Really. High. Blazed.
If you're interested in buying, you can pick up the latest and greatest model from Arizer. Some times you will see deals out there for under $299, but be wary, they often omit many of the accessories that are meant to ship with the device.
Also, I have a more in depth review of the device posted here. Also some tips and tricks here.
TL;DR: Which vaporizer is the best? Extreme Q by Arizer.
P.S. Some of the links in those post are affiliate links, so if you found this information useful and would like to buy, I would appreciate your click :)