The Cost of Training a Dog

I imagine that it takes up so much of your time to actually train a dog to do all this stuff and even before that when you're finding breeders and and testing puppies. What is the average like what kind of range are we talking about if someone was to go and buy a by a trained dog? It's such a big spectrum because depending on the skill set that the dog should be able to show, I would say the range would be somewhere between four thousand two to fifteen thousand probably right right.