I have to agree with the addition argument. It's so easy to keep several of them, even a dozen/s. I'm sitting with a collection in the low 20s and it barely takes more time to care for them than it did when I only had a few. For something that doesn't take up a lot of time or room it's easy to get a lot of them. Dogs/cats take up a lot of room, you see them all the time and you basically have to spend hours with them every day, nothing like snakes.