I see that the cost of the Edge of the Empire Core Rulebook is $60 (which seems like an awful lot, given that I can buy the incredibly complex Arkham Horror for that amount). However, the unique dice don't come with the core rulebook but are necessary to play and those are an additional $15 (assuming you're all going to share one set, which I'm guessing most won't).
Am I right that the base cost to play Edge of the Empire is actually $75?
You are right. I would also like to add that it is in truth a lot more than that. This book is only if you want to play as a cowboy(s) in space. If you want to be a solder of the inner core or a Jedi, that will be another $120. So just for the core book(s) and to get the full Star Wars experience, you will need to spend about $200 - $220. As the games get bigger, you will need 2 or 3 dice sets. This is a pricy game.