The more I have looked at the Karma, I don't think its that bad. In fact, its very close to being the better option for most people. I love my Mavic, and certainly not switching, but here are my opinions:
1. Karma camera is far superior to the Mavic. Its much wider field of view. MUCH wider. Most of us shoot landscapes and want dramatic effects, and thats what you get from the Karma. Has more clarity to boot. I wish Mavic's camera had alternative lenses you could swap out.
2. The range on the Karma is 1.8 miles. Thats pretty much the extent of the comfort zone for most Mavic users i've read here, including me. Particularly with the short battery of both, you cant spend much time 4+ miles away away anyways.
3. Karma max height is 10,500 feet. If you are flying that high....god bless! Height is high for both.
4. Speed. 35 mph vs 40 mph. Ehhh. Both fast, but also most users aren't speed racers, we are trying to capture dramatic footage.
5. Remote. I would actually prefer the Karma remote with a screen with its option to use my phone with it.
6. Now the size. Thats where Mavic wins in a long shot. I travel through airports with my Mavic in a tiny camera bag, and its like carrying a small lunch. Love it. However, Karma will certainly be able to shrink this thing and have the arms fold better in short order.
Thats just my 2 cents. Better (wider view) camera or compact convenient device. Thats the 2 biggest decisions for most people, in my opinion.