Definitely! You're right, the homepage doesn't explain as well as it should.
All use cases boil down to two scenarios:
1. Creators want to sell a digital thing, but don't want to give up 30% to 50% in fees. Digital things could be: ebooks, a font, PSD templates, WordPress plugins, etc.
2. Creators want to take advantage of Git integration (fantastic for selling software, ebooks, etc)