No, you would not want to take along the humidifier for the Transcend, it would negate the bennefit of the small, light weight travel machine as you have pointed out. I find that when I travel to places near sea level that have a relatively humid climate it is not a big issue to not have a humidifier, but of course, on the flip side if you are traveling to a dry climate then it becomes more of a problem. I think Transcend came up with the humidifier option for people that wanted to use the small machine at home as their primary machine when not traveling.
As an alternative, and a bit of a compromise, travelers with these small machines have been relying on an HME device which for all practical purposes is a fiber ball stuffed in a plastic tube that fits between your mask and hose. It's supposed to capture some of the moisture from your exhaled breath and make it available for your inhale. I have used the HME on several trips and to be honest I really can't tell that it does much, and the theory seems to fall apart with a constant flow of air through the tube in one direction......seems almost impossible that any exhaled moisture can travel against the constant flow of air coming through the cpap hose to make it upstream to the HME. Sorta like driving down the interstate the wrong way
Here is a link to the HDM version of the HME, and although it is for the Z1 in reality it is universal and can be used with any standard cpap hose connection and any mask, so not just for the Z1:
https://www.cpap.com/productpage/z1-hea ... -unit.html
But some frequent travelers like Bill-e above says he does get some humidity from the HME, so it may be up to personal experience and your experience may vary.
I just keep some drinking water on the bed side table and have a sip anytime I wake up for a bathroom break, and like anything else, you do tend to get used to no humidity for a few nights on a trip, especially if you're traveling to a higher humidity area.
Be aware that any really small travel machine like the Z1 or the Transcend does take some getting used to for the first few nights, some people adapt well, others don't, and some never do. They do not operate exactly like your regular full size machine, they do require an adjustment period. But for most people that use them enough you do adapt and can use them just fine overtime, the more you use them the easier it is to get comfortable with them.