For some cat owners, "too many" means two cats. For others, it means nine. Frankly, it all depends on the type of environment and attention you can devote to your kitties. Spoiler alert: You're not going to get a specific number from us; anyone who gives you one, shouldn't. To clarify, and to help you identify if and when your quota is met, let's look at some data, significant insider info and general best practices for raising a healthy cat family.