How much should I pay for a Pit Bull?

I'm considering adding a Pit Bull to my family, but I'm wondering about the financial aspect. How much should I realistically expect to pay for a Pit Bull puppy? Are there any additional costs I should be aware of, such as vet visits, training, or insurance? And is it better to adopt from a shelter or purchase from a breeder? I'm keen on finding a healthy and well-tempered dog, so I'm willing to invest, but I also want to make sure I'm getting a fair price. What advice would you give to someone shopping for a Pit Bull?