Given than my dental school costs (straight out of HS, no other undergrad debt), was about 50k, that family paid for, 650 suddenly doesn't sound like a whole lot. If Corp pays 350+ a year then that's essentially 3-5 years of work to pay it off.
And as long as I'm licensed to practice, I'm wide open to working weekends doing implants and sedation to boost those numbers, if I don't declare a limitation of specialty. ( For comparison, I knock out a full arch in a couple of hours currently. Going rate for that is right about 2.5-3 grand where I'm from, using pricey straumann implants, rocky mountain grafts and cerec prosthesis. Going rate for that out here is at least 10x more in my experience). All in it's a fair deal in that respect.