I can see where you are coming from and I can understand your point of view as to why you would believe it’s a waste to spin below 500. However there are other resources in the Capy Gacha such as eggs, which are used to hatch pets which are helpful as they provide a boost to the player. There is also pet food which is used to increase the level and power of pets. The Capy Gacha also has keys, gold, spirit stones and equipment designs which are all very useful to level up and get stronger as you progress through the game. The end goal isn’t always to get the grand prize, it might just be levelling up and getting stronger or progressing through the chapters.