this is a loaded topic and I have approached a number of people about this since my 'collection' is ever increasing
They require less space and time than most other pets.
Dr. Phil wrote "Pathology starts, when normal day to day functionality stops"
I try to keep that in the forefront of my mind Before I get another animal.
Can I afford it? Do I have the time and resources to take care of it Properly (Including the vet bills should they need medical attention).