I was 63 at time of surgery and lean toward the surgery option for you for these reasons: 1. Biologics only work for a short period of time, not the long term and you are not getting any younger. 2. Overall health may be good now, but let's face it, with age comes body break down problems...maybe heart, maybe diabetes, etc.
With me, I suffered for twelve years with UP (mine was always in the rectum). All the meds failed over time and I had become prednisone dependent. As if the UP wasn't enough, prednisone gave me full blown osteoporosis, uncontrollable high BP and type 2 diabetes.
Without the surgery...total colectomy with end ileostomy because I was not a candidate for j-pouch...and I really didn't care, I just wanted that disease GONE...I don't think I would be here today at age 66. I feel great and only take 1 pill a day and that is for my BP which is very well controlled. I no longer have diabetes either. However, the osteoporosis is here to stay.