There is a fine difference between updates and upgrades. Usage of the term upgrade suggests that you are entitled to use the following product once the old is EOL.

And that is exactly the point - there is simply no clear statement about this on the website. You explained your thoughts in your post, the thoughts of judges in my country can be found earlier in this thread. A bindingly statement where it should be (on the website, not hidden in a board like this) would avoid confusion.

However, i have heard enough to make my decision.