I think that it is wonderful that you took the time to do research. If everyone got a Yorkie, what would all the other breeds do for a home? That being said I would have a very difficult time owning a large, deep-chested dog because of GDV. I would be so scared and panicky all the time. I also know that Rotties are prone to certain types of cancer. I also HATE dog hair all over the place. Besides that, if a small dog jumps on you,you certainly won't fall. Don't get me wrong, I love big dogs. I just don't think that they are any less work than small ones. I am sure your new Rotti will be very happy with you though.