If you took the full ride, would some or all of the parent and grandparent contribution to your college costs be available for medical school costs, if you get into one?
For medical school, you can probably assume $300-400k debt, unless you are in state in TX or NM and get into an in state public medical school. Better not to have any undergraduate debt going into medical school, and better if any money saved from choosing less expensive undergraduate school can be applied to medical school.
However, most aspiring pre-meds do not get into any medical school, so you need to consider the more common case of what you will do if you do not go to medical school, and how debt and money will affect that.