Honestly, they seem to work really well in the subwoofer format, and the weight savings are really nice. I've wondered if it is actually a more optimal shape for a speaker to reduce reflections and standing waves in the cabinet.
I do wonder how the veneer looks on it from a finish standpoint, how the seam looks etc.
I will say OHM does a pretty good job keeping things under wraps as far as what is inside. I've liked what I have heard, but even with that big can on top, it really defies speaker convention of not obstructing the tweeter.
My guess is John specs the tweeter based on pure measurements, and doesn't really look at the price, other than to find a good performer at a low price.