I think Jwood is right, I don't see pricing coming down, there is a lot invested in the R+D through building the unit and then if the manufacturer wants to stay in business they have to set aside some of the profits for anything unforeseen in their designs that lead to warranty issues.
Perhaps there will be some knock offs of the stuff already being built that may be cheaper but I would keep in mind that those who have not been ahead of the curve with their own design probably do not have their heart in it like those on the forefront and are only there for the quick buck.
I don't see testing becoming less expensive, now it is mandated and only select labs can test, again big brother setting up monopolies and the consumer pays the price!
Thanks for the kind words Cando and remember, I'm still here to help regardless of who's name is on the boiler!