I got this year, for the first time in my life, because I'm pregnant.
I made sure I got the fluzone shot with no mercury in it.
I highly doubt I'd get it again (unless I was pregnant again). I mostly got it because I was flying, and didn't want to get sick from traveling and such. I'm not sure if I wasn't about to fly, if I'd have gotten it.
I didn't have any side effects, I felt really achy about two days after but I don't think it was a vaccine reaction. I haven't gotten any other vaccines since I was probably 12 or 14 years old, I tend to react badly to medications and since I have a good immune system, it doesn't seem worth it to me. I was titered and still have immunity to most of the things I got vaccinated as a child for, including chicken pox. I'm not one of those people who believe vaccines cause all kinds of problems and autism and whatnot, but for me, they don't seem worth it.