Check out the Herbalaire (HA), imo.
It is made in Canada and can be had for around $150, these days.
Though it has never gotten any love in here, it is a great, simple design (like a thermos), is smallish in size and rugged as hell, with an over 10 year proven track record, and is the most versatile and reliable vape around. In fact, any problems/returns are almost non existent. It is such an under rated, powerhouse desktop unit, and the company customer service has been quite excellent.
It features precision temperature control, excellent heat retention, and can be used with bags, whip, direct, or inverted directly to your glass/water. It is ridiculously easy to use and doesn't even need grinding to give the most even and thorough extraction of actives out of any vapourizer on the market. It also features an unlimited 3 year warranty.
I like to think of my solo as my HA's little "brother".
Here's a vid of a good explanation of the HA: