Vaccines aren't actually that profitable...because the fact they are required to be at a cost that nearly everyone can get them, pediatricians and doctors often loose money on vaccination administration. And it wasn't too long ago the vaccine industry was just barely scarping by with little to no profits. There also was a point in time, where a lot of drug companies stopped making the drug. You usually (unlike the Flu vaccine) only pay for it once in your life...and honestly, I'd pay over a thousand dollars per vaccine (way more than they cost, they cost about $136) just to keep my child from dying of polio or tetanus, or something worse. The Flu vaccine while it doesn't always work, still has a chance of saving someones life. Even if it's only 40% that 40% can save peoples lives. Im sorry if you can't get over the fact that they work, and they save lives.