Thanks for the support.

Yes, I think insurance covering the cost (although strangely here in Canada it isn't covered by helthcare but instead by private add-on insurance (Really? something I need so I breath right and don't have a heart attack or stroke.. thats not covered.. really?).

I think things being covered by private insurance companies that can foot a bigger bill then most people if it were out of pocket keeps the price up.

And just so people know I do plan to test things very completely. In fact I'm hoping that at some point a respiritory Therapist or two will contribute. Part of the project will be how to inexpensively build accurate test equiptment to test the machine that gets built.