It looks like they have a lot of DLC coming out. The GOTY edition will be a long time coming so you pretty much have the choice between waiting for that to come out or buying twice, first buying the game, then buying the season pass, then buying whatever other DLC they release outside of that.
You could also just give them permanant access to your bank account and they will make withdrawals whenever they want to buy something?
You could also just give them permanant access to your bank account and they will make withdrawals whenever they want to buy something?