I've had 3 shots (Pfizer 1, 2, and booster). I am done. I know a bunch of people who got all fancy free after their vaccines and many of them got the Corona anyway. There would have to be a really good reason for me to get a 4th shot at this point. I'm not going to keep blindly pumping that into my arm, particularly since 99% of the time I'm working at home and I don't go anywhere, no concerns, no restaurants, no travel, etc...
My own personal opinion.