It's not "free". Cost was covered when you bought TTK, which is what the Bungie rep said in the update. Nothing is free. This is the next installment. Enjoy it or leave it, everyone's choice. The model/plan was for 10 yrs, which would mean plenty more sequels, ad-ons, changes. It's an evolving story line you don't get the whole thing all at once. Just like anything else including book and movie sequels.