Best kept secret of the dog world

I adopted my Greyhound on a whim and it changed my view of dog ownership. She is calm, quiet, and completely undemanding. She gets a forty-five minute walk in the morning and a shorter one in the evening and then she sleeps for the rest of the day. She is affectionate without being clingy. Her prey drive is very high and I cannot trust her off-leash near cats but in every other respect she is the ideal low-maintenance pet.