Every decision in life, either consciously or subconsciously is made with a personal risk analysis.
Advantages to getting flu shot:
1. Possible avoidance of inconvenience caused by getting the flu.
2. Possible avoidance of being a vector for passing the flu to others.
3. Possible avoidance of death.
Disadvantages of getting the flu shot.
1. Cost
2. Inconvenience
As a health care provider, the amount of inconvenience and risk involved with getting the flu far outweigh any minor cost or inconvenience. So I get mine.
Since people are not legally required to get the flu shot, it's all personal choice, and I don't get concerned how people analyze and act upon perceived risks. I would however be very concerned if I had an elderly or frail grandmother who was recieving health care from folks who had a cavalier attitude about receiving the injection.