There is much missing from BU's published cost estimates:
Do you have a car? Because during your 4th year, you do a 10 week off-site externship out of town/state. At the D4 orientation, they tell you that if you do not have a car, you will have to lease a car (some sites have multiple students so you could possibly carpool if you're lucky).
Do you have enough expendable cash to give to your patients to pay for their treatments? Anecdotally, 90% of students have paid for some of their patient's treatment, 99% if you count the NERB. If you can't afford this, you will be at a significant disadvantage - your 3rd year 15 credit clinical course's (GD630) grade is determined by the quantity of treatment you deliver; also you will have difficulty graduating on time. The sad truth is that losing those procedures will cost you dearly, unless you are one of the lucky ones that gets favorable treatment (the school may have assigned you 2 patients, while your neighbor has been assigned 15 patients in that same time period).
The tuition projections are not even close to reality. From D1 to D4, tuition alone went from $45k to $55k, more than triple the projection I received during interviews. (Ever hear of bait and switch?)
Why would you spend $500,000 on something with such a bad reputation, with so much risk with how the program is administered?
And you have no guarantee that you will even graduate after spending that half million dollars + interest. BU dismisses students every year, even 3rd and 4th year students (for not meeting quotas, of all things - I guess that's one way to pressure students to recruit patients to address their shortage). I've seen too many students' lives ruined by that current Dean.
Final thought: If you get waitlisted or still have interviews at other schools, I can't think of a better way to prove your interest in their program than to turn down an acceptance at BU. (this is assuming you got into BU based on merit and not because of connections)