Because these crystals are made for everyone, not just paragon players. Conqueror and Uncollected don’t have any access to cav crystals at all, so for their accounts getting a cav crystal for 300 units is pretty significant value. Yes, there are more misses for Paragon players than any other progression title, but that is a result of content that isn’t progression based. The ceiling is still worth the risk, but if you don’t want to buy them then keep your units and carry on. As I say this, please know that I would agree that I am not happy seeing a cav crystals, t4cc or a whopping 1k 6* shards (let’s not talk about scrap), but that’s the trade-off of a wide range of drops.