This is also the only forum I have ever seen that allows posts without being logged in. One could post without being logged in, but not create threads, etc. So make sure you are logged in. If, like me, you assume that you are logged in simply because you can post, that can be confusing at first.
Yes, IMO you should push for an auto bi-level. In the future I think all machines will have multi mode capability including auto. It's progressive and it makes sense.
it may not make as much sense to those who feel the need to protect their profit margins.
When I was diagnosed, I quickly found out from wonderful forums like this one to know your products and that the DME and insurance companies will do everything to maximize their profit. I insisted on a auto bilevel. And in order to get it, I had to do a sleep study, first try a cpap, then and auto bilevel and now I ended up with an ASV bilevel - but my AHI went from in the 70s to .8 - 1.2 and I ended up picking up a spare brand new bipap (760P) cheap for cash.
It was uphill with everyone, every time but worth it.