Whats special about a Dogo?

The only thing I would like to know is why are they so expensive? I am going to get one sooner or later bc I have a friend that is breeding his and it's not costing me anything. I have hunted with them and the only thing to me is there size but there are some leggy pits and abs out there. I guess it's just a personal preference but I think if you compared a great dogo to a great pit and a great ab there would be nothing different a real deal catch dog can be all kind of different breeds. It just easier for me to go with a pit or ab due to the price.