That's a rather disingenuous position from a bright individual, nash. First, the assumption is that vaccination equals 100% effectiveness. Nobody, aside from th anti-vaxxers has ever taken that position.
Additionally, are you not aware of vaccination lead to the eradication of Small Pox and the attempt to eradicate Polio? The fact that the Polio vaccine is not able to be administered in rural areas of Afghanistan and Pakistan (effing religion!) is stymying attempts to eradicate polio. How 'bout Measle's vaccination in elementary age children as an attempt to stem any community outbreaks? Take a step back to see the forest through the trees. Both can be true, vaccination protects the individual and protects the community, especially when healthcare is a community resource.