Diagnodent- and then some rambling
I really appreciate you bringing some reality to the discussion of finances. $300,000 is an aweful lot of money. Starting salaries as a dentist are not the same, or anywhere near, the average pay an owner of a private practice makes. And if you start your own practice, you will have more debt, and no patients. If you buy a practice, you will have more debt. Don't get me wrong, I believe everything will be wonderful in the end, but it takes more hard work than what most people realize.
I do have to disagree with you when you say that educational debt is a "bad investment". Businesses spend millions of dollars on research and development for profits that won't be realized for years, or even decades. Education is a personal "research and development". It will not pay for itself immediately, but within 10-30 years it will pay for itself and more.
Of course, the huge amount of money it takes to start up means that you better enjoy what you are doing. It
would be a bad investment if you dreaded going to work everyday. (Don't worry if you don't like most parts about dental school, though.) In other words, if you look at it
only from a monetary standpoint (making money), it does not make sense. (Although the numbers do). But it is not like a stock that you buy that does all the work for you. YOU have to do all of the work to get the benefit, so you better enjoy it.
There are a lot of other good businesses ready to go that can make you a lot of money. They are called franchises. Take the same 500,000 - 750,000 for a dental education and practice and buy a macdonalds or quiznos subs. You can make great money owning these businesses, too, and perhaps you can hire someone to manage it and not even be there.
There, now I feel much better about having all of this debt. (Although I have happened to luck out by graduating with the lowest interest rates in about thirty years.)
2.7% sounds so much better than 6.8%.