I think theres alot of misunderstanding as to a structured post bacc program being more expensive than taking classes individually.
More or less for those students who need to fullful ALL their science classes, you would most likely go fulltime for a year or 2 under a structed post bacc program. Tuition-wise, a post bacc student will pay the same as an undergrad student. Even if i did go try to take classes seperatly, i would still pay the same amount even if i did enroll in the post bacc program. Sure I can take classes cheaper at locat community schools but most of the time, pharmacy schools dont want anyone to take their hardcore science classes at a community school, thus u will eventually have to take classes at some university anyways and pay the same price for classes as students in postbacc program are paying.
Also, I found out that alot of the post bacc premedical programs can tailor you're schedule so that u can take additional pharmacy required classes and omit any uncessary classes that were more relevant for medical students than pharmacy students.
All in all, i believe if anyone is looking for a career change into a medical or any other healthcare field and want some strong guidance and structure on how to progress towards that career, i feel that a postbacc program is very vital. The faculty, and pre-medical advisors that are available for their students can help qualm any doubts or concerns or questions they may be facing throughout their postbacc years. However, on the other hand, there are always stronger students who know exactly what they are doing and how to achieve their goals thus they dont really need a postbacc structured program to assist them. However, when it comes to money, i dont think theres really a difference as far as which direction is cheaper or expensive.