This game looks to have the cheapest entry cost I've ever seen from an FFG Star Wars game. I mean you can be playing for less than 20 bucks, or if you DO drop a 20 you can also get a booster or more (if they are on sale).
Looking at their last few SW games, Rebellion cost me about 80 bucks. Imperial Assault was about 100 bucks.
Armada's core set debuted at 100 bucks, X-Wing was originally only like 39, but with both of those you needed to buy alot more to even be able to play a standard game. Typically you are looking at about a 120 - 200 MSRP minimum to be able to play many of these game.
Here if you spend 100 bucks you are probably getting your starter plus a whole Box of boosters, (or gravity feed, or whatever it is they distribute them in). You'll be rolling in the rares. You are almost certainly going to spend WAY less on this than you would on something else. The only way you'll end up spending way more, is if they have new waves out every 2-3 months or something crazy like that.... or if the rarity for the good stuff is crazy low - like only 1 rare out of every 100 boosters.