Is that the only reason you want a Dobe? Because they are cute? That isn't the best reasons to want a dog. Dobes are super athletic, and they need LOTS of exercise. They also need to be socialized a WHOLE WHOLE bunch so they will be a good dog. They also have some dog aggresion problems.
So if you want a dog that people will be scared of, will call it a monster and you a bad owner because you own one, if he want a dog that you can take jogging with you, if you don't care about dog aggresion, if you can socialize it and take it places all of the time with you, if you can handle a dominant dog, then a Dobe might be for you. If not, find a different breed.