Learned my lesson 3 years ago. 12 days of feeling miserable with sweats, chills, sore throat, etc. I had to cancel two jobs and the others I did do were a real struggle. Every year since then, I am first in line to get the shot..and so far, so good.
Unless you have allergies that prohibit you from getting the shot...or want to wear a Michael Jackson mask...I highly recommend taking the precaution.
Eddie