Eddie Smith, in response to the “why do I have to pay (again) for software I’ve already purchased?” arguments, in the wake of Ulysses’ move to subscription pricing:

The software you paid for is still “yours” in the sense that it is fully functional (as you paid for it) and will continue working indefinitely. You “own” it, and it’s not going away.

Will it work forever? Hell no. Software isn’t the same as a cast iron skillet. Software isn’t going to work the same 100 years from now. It’s probably not even going to work 100 weeks from now without being nursed through the vagaries of operating system updates, security patches, and user-expected support. When the developer of a cast iron skillet is done, they’re done. When the developer of a piece of software is done, they’re out of business—because if a developer quits, so does their product.

I love this analogy.