The fact I can't stress enough is that all of the current log vapes cost roughly the same, despite what their websites might currently say.
The HI starts at $140, but that's for a barebones package that only includes the vape and a non-variable power supply. Since the variable power supply will be important to most users, the price effectively becomes $155 baseline.
Then, since it's impossible to use the HI without a tube, you need to factor in at least $10 for one turbo tube, or $15 for one toasty tube. So at the bare minimum, you're now looking at $165.
Next, you can add another $10 if you want exotic wood, bringing you to $175.
$175 also happens to be the price of a UD Twig, with slight variations possible for wood types. The UD includes silicone stems (which are very cheap to both produce and purchase on their own), meaning you can be up-and-running for that price with no additional upgrades.
If you want to use a glass stem, the prices will still largely stay the same. A 10mm glass stem w/ silicone bowl costs $10 for the HI. Alternative, the all-glass turbo tube costs $30. On the UD side, the basic glass tubes with silicone bowls cost $15, while the fancier glass tubes (which still use silicone bowls) cost $25.
The same can be said about the CRZ, which starts at about $175 and can then be upgraded with a glass tooty (tube).
The bottom line: anyone considering a log vape right now would be incorrect in thinking that they can afford a certain brand but not another. Their prices are nearly identical once you factor in what is/isn't included with package.