My primary physician told me to sign up for whatever was available. I didn't even know I was getting the J & J until the day before my appt. My husband was signed up for something else, but when he arrived for his appointment he learned it was changed to the J&J.
One of the most compelling reasons for me was that during my last surgery, the surgeon ran into complications and had to remove my spleen.........that's not good for the immune system and required me to be revaccinated for a ton of things. I was about to receive a second round of vaccinations right after the stay home orders came out. So now I'm a year behind, and I may gave to start all over again with the vaccines. In other words, I am high risk for all sorts of infections and my immune system is not equipped to fight. I also figure since the hospitals are slammed, I don't want to go near a hospital and just hope and pray I don't break a bone during this pandemic.
We couldn't even get appts until April, so I didn't feel I was in a position to be choosy. Even if I wanted to pick my vaccine, none of the points providing inoculations offered or even had several to pick from.
And of course there was the desire to get out of isolation. We hadn't been able to see our grand daughter for over a year, when our son dropped over he would only stay for 15 minutes and would wear a mask the entire time. So neither mr. G'bag or I have been able to hug our kids and granddaughter for over a year, and to add salt to the wound, our dog died 5 months ago and we have been missing her like crazy.