Dry herb vaping is for (brave) nerds!
I really think it's something you have a make a willing effort to get yourself into. The first vaporizer I bought was a Pax 2 and I too thought it didn't get me high so it sat a drawer for the next 2-3 years (smoking half a dozen spliffs a day at the time). Now after a few years of vaping 99% of time and buying/trying at least a dozen other devices (daily driving a Pinky), I feel my pax gets me higher than a joint.
I feel a lot of people have had the same experience as me, but haven't been willing to go through the habituation curve. It's much more than just learning how to use a device, but it's also getting used to the slower on-setting of the high, the vapor feeling less satisfying than smoke at first, the high itself being more nuanced (imo).
I also think a lot of people carry misconception about DHE. Some people told me they think vapor is not much healthier than smoke so they'd rather smoke, others told me they're not comfortable breathing through electronics/plastic. These are fear that are valid and hard to combat as they're still very little specific research to convince them...
If I wasn't so stubborn about challenging those received ideas, I probably would still be combusting