I would prefer the DLCs being in slightly bigger packs. Playing game after game with not much new content every time will not feel like much of a change. I'm happy with the NFP. I can see why people are not fans of it, paying for something you have no idea what it is, but I like the idea of guaranteed new DLC. And 3 months apart is enough for me to take my breaks from Civ and get excited for the new DLC.