It would be very easy for them to add some free content in the future, you're right, but they never will. Anyone who's bought the last 3 DLCs are already caught in Activisions web, and will be forced to buy their future content, or be left behind and have the $100+ and the time they've already put into Destiny mean absolutely nothing. I almost guarantee these microtransactions will be more than just cosmetics within the next 6-12 months. Activision always lies to their players. I remember them saying supply drops would never able to be bought with real money before AW was released, and look at that game now. Also, I'm more than certain the vault of glass was supposed to be on the disk on the release date, but it was either not finished, or they purposely cut it out to consider selling it separately lmao.