In this case about $300. My cat Bauldy, aka Butthead, had to go to the vet. His front right leg was all swollen. About twice normal size. His left foot is already gimped, probably from the dogs. He is almost 19 years old. I could have left him and let nature take its course. But if he was in pain or something I'd feel bad. Of course the vet suggested a xray so he could really tell what was going on. More money... Results in, and he has some kind of cat degenerative heart disease. Something myopia. Basically his heart...