It's rare for a company to not only offer one-time purchases, and keep updating them, but also not rebranding/renaming/version cut-off charging at some point.

It helps that you have to continue to buy their hardware to keep running said software. I guess they could be greedy and keep making me pay for Logic every few years so I'm happy they don't do that but they're still making money off my initial purchase of logic just in a different way.