You’ll get a variety of answers about this
When I go to the darkside parks, I stay onsite at the premier hotels and get the unlimited ep
It’s worth it to me
I avoid long line waits
I don’t have to plan anything out in advance for my days
I have limited waits in ride lines
and priority seating for the shows
It’s hot in August and waiting in long lines is something I want to avoid
I would assume that early August would be a busy time in the parks
If you are in the parks and it is crowded and rides have long waits, you can buy the ep (either version) at guest services in the parks