Most schools are pretty good at preparaing you to pass the NPTE. Don't kid yourself - that is what you are paying tuition for. IF the NPTE pass rates are very similar, and the total costs of attending the program, tuition, fees, cost of living, etc. is as large as $23,000 I would go with the cheaper school EVERY time.
As far as I can tell, you will need two qualities/skills to be a successful health care professional:
1. The ability to appraise relevant scientific literature. This will help you modify your practice patterns as new research comes to light, and will make sure that you aren't treating your patients with outdated interventions and/or following a dogmatic approach to treatment just because that is what your were taught in school. If you do'nt come out of school with this skill, your school has failed you, and you'll fail your patients.
2. The ability to critically reason. I think that generally you are either born with this or not, but there are some students I have had who have developed this with hard work.
Ultimately, it is up to you. If you think that UF can make you $23,000 better at literature appraisal or critical reasoning, go for it. My guess is they can't, and that you're just as likely to pass the NPTE having graduated from UNF as UF.