It's also not a model that has disappeared or anything. Not just in the MMO space where there are plenty that may or may not be free-to-start but claim their primary financial driver is expansion packs. Overwatch is sort of based on that model, but always had loot boxes. Destiny was based on that model, but always had micro-transactions. Destiny 2 is now free-to-start, and again that line is really blurry between F2P micro-transactions and "expansion pack business model".