Realmac Software’s Dan Counsell:
When you get swept along in the shininess of the App Store it’s easy to forget that you no longer know who your customers are. You don’t have any of their details, you can’t even respond to them when they leave a review on the App Store. The fact of the matter is they are really Apples customers, not yours.
When you sell directly outside of the Mac App Store you get the contact details for every single person that buys your products (and rightly so), this is often overlooked but it’s key to running a healthy and sustainable business.