Walk a Savannah cat - a dog in cat's body

If I ever get one Savannah cat, it will be a F1 for sure. The more generations down the road, the smaller they get, and they also lose the original traits of long legs, etc. Might as well become less energetic. Common house cats can go for as low as $5 at local animal shelters. I don't expect to get a F1 Savannah for anything less than 4 digits no matter how good the deal is. It is a mini leopard we are talking about.