Aha. I'd advise them to make this clear from the "new user" perspective, rather than just the "upgrade" path, because when I started this job, I set out to purchase a brand new license and was given the impression that it wasn't available anymore.
Edit: I've literally had this belief for years, and I absolutely love their product. I'm the classic case of the user that's already decided to purchase and all they need to do is take my money, but I gave up. Searching produced a forum post where there was a litany of users who were thoroughly confused about the availability of the licensed version, as well. We are clearly not alone.