Free lunch

Sometimes I think free lunch from drug representatives is a way for doctors/medical students to get back to all the days where we missed lunch (due to works or lack of money or cash machines in the hospital broke down).

http://www.nofreelunch.org

Prolly because I am not yet a medical practitioner by law, I can't really see how drug representatives promotion can influence medical practice. I think I did improve my pharmacology knowledge a bit by going to drug reps talk & lunch. I tend to do a bit of literature search before jumping into conclusion (good practice?).