Haha. You knew what you were doing. You were trying to fish people in un an underhanded way by not making it clear that the one-time purchase isn't _actually_ a one-time life time purchase with all future updates for free. Take the L and move on.
You've read me like a book! When you grow up, you should become a detective. Or a business consultant, as you are equally good at figuring out why people buy stuff.