I purchased
M2P in 2018 for $1499. I just spent another $2199 on
M3. I am a professional photographer who only shoot stills, there is not need to purchase the Cine version. So the price difference is $700, not $1800.
Besides the image quality improvement of that 4/3 sensor, there are other improvements which benefit my professional work:
1) The 50% increased flight time (46 min vs. 31 min) gives me more freedom to scout the terrain, compose and shoot, especially during sunrise/sunset. The sky still looks fantastic, even 20 minutes after sun goes down the horizon. There have been multiple occasions I missed a golden opportunity, because the battery ran out, and I have to land the drone, change the battery, and fly back to the same spot to continue the shooting.
2) The extra wind resistance of
M3 means more stable shoot in windy condition. It also helps long exposure during night shoot.
3) The 7x telephone camera. If you are creative, you can still come back with some interesting and unique images.
4) The 15.5mm add-on wide angle lens. Personally I think this accessary is a killer feature for photographers, since it opens a whole new door to more dramatic aerial images.