I'm an associate that produces more than 15K a week and currently plan to stick it out at least 4 more years, unless the perfect opportunity comes up. I get a very good percentage of what I produce, I'm learning a ton from my boss about how to be a better clinician and how to run a business, and I'm treated well.
The biggest reason I'm not looking to buy something right now is the massive student debt load that I'm carrying. If I were to add a practice loan on top of that and then end up owning a practice that only produces 400-450K, by the time all the bills would be paid for the practice, practice loan, and my student loans, I'd have just enough money left over to pay a psychiatrist to help me deal with all the money related stress. Sticking it out in a high paying associate position allows me to maintain a good lifestyle, save a ton, and pay a ton toward debt without being stressed out by money at all.