i can see many pros salivating over the air because the mavic pro was just too big to trek with. in my hobbyist case, no reason to upgrade from my spark. i don't want to deal with 4K memory premium, 4K edits and 4K storage/archive. heck, most of my video uploads are 720p because, you know, PH internet speed. the only occasional advantage of the 4K, for practical, amateur HD shooters, is the ability to digitally "zoom" into a 4K vid by cropping to 1080 or 720. otherwise, it's buying specs for specs' sake.