Funny coincidence someone showed me something along these lines at work today. I was looking for topo data on a site, one young engineer suggested a drone scan (<$1000) then another one piped in and said oh we can get it from satellite within millimeters for a couple hundred. Showed me a recent example. Fuck me it was an extremely accurate and RECENT 3D model of a 5 acre site. On demand for negligible cost wherever you want. Now imagine what you could get for real money…