Why is this so singular? Why can't both be true; lots of different instances while levelling (no need to grind them; there's variation) and stuff to do at end game. It takes time and effort to make a dungeon, granted. But there's reuse there. FFXIV has this; LOTS of instances. I hit 50 and still hadn't even stepped into some of them. So, at end game, I actually have instances i've yet to experience. If it's all about loot for you, then grats, 4 is plenty, and in many ways optimal. 4-6 is too few. This bothers me, so holding out to see what Adventures bring.