Sure. If you're an indie dev you get 70% of all purchases. No complicated contracts, no middle-men, no varying deals in different countries and distribution is as simple as uploading a file to Apple. With musicians they get almost the same % but it also has to go through a ton of middle men and the deals vary around the world. They're also locked in at a single price point (the streaming rate). Finally with brick and mortar stores the deals were much, much worse and if you couldn't get a deal you couldn't sell your software. With pure online distribution you had to build a website, payment system, update mechanism, manage DRM/serials and if you didn't market heavily you wouldn't make a penny because no one would know you exist.