Comment by tpmoney

I’m a big fan of JetBrains model for this. Buy the software on a subscription, and the subscription gets cheaper for the first 3 annual renewals. While you’re subscribed you get access to the most current version and when you stop subscribing you have a lifetime license for the latest major version (and it’s patches) that you’ve paid for at least a year of. The subscription helps fund the continuous development that is expected of modern software but you still get to keep something for having invested that money when you’re done.