This all depends on where you train and how you train. Some train for fitness. Others train for sports like bjj, mma, muay thai. Other train for self defense/life protection. All schools are not the same and neither are all instructors. If you are training for competition you are training for...
No one is giving away a good presa for free. Also, the dogs in the apartment were not presas. It was a bandog. Everyone says they were presas. But they didn't read the entire article and are just repeating what they have heard.
I own several presas
Elite Guardian Presa