I didn't go to the specs. Went back and found the 25.4cc for the 260 and 270 engines.
Using an engine that can cost as much as 2 HTs. Good engineering, quality pieces, ease of switching from powered to pedals, it'll be hard to get the start-up cost recovered. They are in a class by themselves.
I understand the cost thinking, but they aren't there to compete with a throwawy motor that is built by the millions, probably closing on the billions. We don't buy expensive bikes to motorize, as bikes can cost thousands. I've seen front forks cost 2Gs. But there is a market for the pricey bikes and forks, and I'll bet there is a small market for this as well