If you only target the same top 20% income earners like most other orthodontists, then you'll face a serious problem. You are just a new grad and your office doesn't have a track record of producing good ortho tx results. Why would a person, who has good income, want to choose your office over other established ortho offices?
The ortho residents have been brainwashed by their instructors that in order to attract more patients and to survive in a competitive market, they must bring the latest technology to the practice. During their residency training, they were spoiled with all the high tech gadgets. When they got out, no chain office wanted to hire them because they couldn't work in a low tech office. When they got out, they spent $300-400k to build a state-of-the-art practice in an affluent area. They charge a consultation fee when most other orthodontists don't. And then they go around and complain why no patient come to see them. They charge $5k for a simple case that can easily be finished in less than 18 months, and they wonder why nobody accept the treatment. Then they come to this forum and say ortho specialty is dying.
I don't deny the fact that there is an oversupply of orthodontists but the demand for ortho tx is also very high. Most parents want their kids to look good and have beautiful smiles. The problem is many of them cannot afford the expensive orthodontic treatments. It's tough for families who depend on paycheck by paycheck and have 2-3 children, who need braces. So if you target this low-income group of patients who can't afford tx at other ortho offices and are largely ignored by other ortho offices, you will do very well. Don't worry about charging low fees. Just get as many people to start the tx at your office as possible. The more beautiful cases you finish, the more people who will know about your practice and the more successful you will be. For a general dentist to make $3000 for doing a 2nd molar RCT+buildup+crown, he/she needs to spend at least 2 hours. The doctor's time for doing a full 2-year ortho case is about an hour.....and you rarely use your hands.