My uncle breeds and sells pure-bred dobermans, and has for quite a few years.My family has gotten 3 from him.
All have been female black(blue?) dobermans, though I am going to probably get a red one from him sometime soon.
Our first one we had for several years but she got some kind of disease and lost her control over her rear end/legs and we had to have her put to sleep.
The second one we got after it was a month or so old and it was just too wild. It had been living at my uncle's house in the woods where it could run around all day freely, and it just couldn't adapt to coming inside the house or just being in the fenced in back yard. We let my uncle have that dog back and we waited for the next batch of puppies that he had for sale to choose one.
Our current dog is also pretty hyper active, but she, like all of our other dobe's, are the nicest dogs we've ever owned. We do not get their ears cut up at all, we don't want them to look mean, nor do we want to put them through any unnecessary pain.
Some doberman's tend to be a bit more active than others, so try to keep that in mind before you pick one. Usually from seeing the puppies, you can tell which ones are going to be the wildest