* There's also the 30% cut, which makes no sense when you're talking about a well-known and well-trusted app like Sketch. Nobody fears installing Sketch outside of the MAS, so BC may as well host it themselves. I imagine the average new Sketch user discovers the app via recommendation, or article on the web, so BC will likely make more money away from the MAS. Especially when you factor in the improvements: faster bugfixes, and new features they can without sand-boxing.
Also for software more expensive than about $10, a trial is a must, and the Mac App Store doesn't allow for trials. So the user will seek out the trial version on their website, and then why even bother with the App Store?
