Ditto, build time AND fuel costs i.e. operating costs.
I have an open cockpit ultralight, and my rv7 will be done this year, BUT I am also seriusly considering to build a 12 as well...WHY?
I like building, but don't want to invest several many years in another airplane.
In addition if you just want to go for an hour's flight just to get into the air and rid yourself of work stress, the 12 would be much cheaper on gas compared to my RV7. But it would never beat the RV7 for going places!
That is if, if you like me and you want a 2nd airplane and like building.
I'm thinking I can always sell the 12 and at least get my money back if I don't like it or find it too expensive to own 2 planes.
Regards
Rudi