for sure....$5700 is a huge chunk of change to invest in a hobby. If somebody plans to use it in a business, then the price is relative....although then the option might be the Matrice 4T
from everything I've read and seen, it sounds like the...
Compass calibration? Are you taking off from a steel structure or concrete with steel rebar in it. You shouldn't have to do a compass calibration ever or very seldom.