I always thought that, with Dropbox, you weren't paying so much for the tech as for the storage space. I'm on a free Dropbox plan, which is presumably using essentially the same tech as a paid plan, just with less storage.
Honestly I understand Dropbox more than a $80 screenshot app
But it takes not just screenshots. But "beautiful screeshots"
Whatever that means
Retina(tm) screenshots
It means it doesn’t work when your screen looks like crap. ;)