I think 30 schools is overkill. Actually, I think anything over 10 is overkill. However, if you are that worried, do not care about money, do not care where you go as long as you get accepted, and are really determined to apply to 30 schools then go for it. Be sure that you can meet ALL requirements for ALL of the schools you apply to. Some schools require immunology, for example, whereas others may require econmics, public speaking, or TWO semesters anatomy and physiology. You will waste your time and money if you apply to schools where you don't, or can't, meet minimum GPA, PCAT, or prereq requirements. They will be happy to take your application and fees, but not accept you. Just make sure you pay attention to all of the application details and requirements for every school. I imagine you will have to pay a thousand or two or three in application fees alone, not to mention any possible interview expenses. Good Luck!