Yes, or no, I did eventually, before I posted here, figured out that I did not need the EP. My point was that it is far from clear on buy/upgrade page

Look at this:
First time purchase:
Pro $129
EP: $569
PlusPAK not available

2017 PlusPAK:
-not listed as Upgrade

Upgrade from 2016:
Pro: $69
EP: $379

Here's thing: When do I buy the $379 EP upgrade? If I did not have it before, then it is a first time purchase and that is $569. And if I had it... well, then I have it already, don't I?

In any case, since the computer I had the old version on is not more, I do have to download all of it. Install all of it. Open 55 DMG, click "Continue" 165 times, type my password 55 times and eject DMG's 55 times.
When I'm done I can only hope I got them all because, from what I can see, the program cannot tell me what I haven't got.

An in-program download, including purchase the new stuff, would also allow you to quickly release styles one by one as soon as you are ready with them. Please consider it.