Depends on the needed resolution. You can cover a lot more earth, far more cheaply with a satellite with several meter wide pixels. When I used to work in remo

Depends on the needed resolution. You can cover a lot more earth, far more cheaply with a satellite with several meter wide pixels. When I used to work in remote sensing I remember that Bing Maps had a very distinct resolution transition from spacecraft to aircraft. Aircraft coverage maps were a small subset of the total earth land area, but most US towns had some coverage at that time (~2012). As you zoomed in, you could tell when Bing switched capture methods because the aircraft cameras were clearly off-nadir, and you'd see off-angle perception differences.