Getting DME to provide machine of choice

Don't do it! You will either end up with getting a used s9 to start with and will never get the Airsense. Any Dme company who is giving new s9, then switching out to new Airsense just because is stupid and won't be around long.

I totally agree. . . . . . ALL SALES ARE FINAL.
My DME was "having trouble" getting the Airsense 10's in, and said they could only get S9's,
so I told them I would wait. It took about a month, but I got my machine of choice.
This might be a good time to get your back-up machine. (Out of pocket--you should have one anyway.)
If my S9 had died, I would have fired up the Devillbiss Autoadjust, an excellent primary machine
for many here who have lousy insurance or none at all.
Secondwindcpap also has lightly used or open box new models.
I bought new from our hosts because of Flex dollars.