Buying your puppy is probably the most important decision you will make concerning your dog. It is amazing how little thought goes into this.
So why a Rottweiler ?
It is important to ask yourself, why a rottweiler, Is it really a breed for you. What a Rottweiler is not is a breed you can keep shut up for 24 hours a day.
He is content when he is working because when he is working he is pleasing his owner and that is what a Rottweiler really loves to do. He is happiest when he is with his master or mistress. To be left alone on a chain is heartbreaking literally, so whatever the reasons you chose this breed, his intelligence and exercise requirement must be borne in mind.