Several reasons I didn’t go with rooftop solar. First, my roof is really way up there. I didn’t want to be up and down ladders to work on the panels or wiring. Ground mounts for the win. Another reason you mentioned, opaque pricing from solar companies. Still another is rooftop solar becomes less and less of a good deal over time as utilities find new ways to screw customers, many of whom will be paying for panels for over a decade. And, finally, rapidly falling battery costs. The biggest reason…with this system I can add to it a little at a time without financing. Found panels I can buy two at a time that includes shipping. The add-on batteries are something I can add as I can afford it. Eventually I’ll add an automatic transfer switch I can run remotely, after the whole house system is built out. The electrician built in the future automatic switch expansion to the wiring and conduit they put in for this project.