Yes, cats are not half as loyal or affectionate, except when they want food or attention, they are incredibly selfish, one of my cat grabs my chair for herself and I end up sitting on the floor sometimes because she looks too damm comfortable to move her. They can be horrible when they catch cute birds or mice, espcially if they decide to leave bits of them for you to find as a nice 'present' on the floor.
They are still very lovable though!
Oh yes, they also don't need any walking!!
Cheers Sue