Vampires game play is MUCH deeper than mermaids. As I mentioned above, vampires have the ability grow and as a vampire building your abilities as you see fit on top of weakness that you can develop to make your vampire unique. Not to mention a lore skill specifically for the occult and multiple aspirations that are geared specifically toward playing a vampire. Which is quit the opposite for mermaids making it lackluster in compassion. There is no development or learning of your abilities, no lore skills, no aspirations to pursue...you just are a mermaid. Each and everyone has the exact same abilities with CAS being the only thing that makes you different from every other mermaid in the game. Even the process of becoming a vampire is much more interesting and drawn out over several days as you transform...while mermaids is just eat some kelp and take a swim.