That's the heart of the problem: proprietary software. By making your software closed-source, you take responsibility of distribution, and that's a significant

That's the heart of the problem: proprietary software. By making your software closed-source, you take responsibility of distribution, and that's a significant cost. Doing it the Windows way makes it easier for you, sure, but it doesn't make it better. It makes it more difficult and dangerous for your users, which in turn devalues your product.