I agree with just about all the posts here. Surgery should be, and usually is, a last resort for us suffering with IBD.
The first time my GI doctor even mentioned the word surgery to me was when Remicade failed. He had a smirk on his face when he said it too, meaning he didn't think I would agree. When I told him, "Yes, I think surgery is the answer for me now", he just about had a stroke. At the time, I was suffering with UP for twelve years, was prednisone dependent for the last two years, 6MP and Remicade had failed. I had portapots in practically every room in my house because I could not make it to the bathroom and we have a ranch type home. You could say I was existing, not living.
I did give Humira a shot for three months after Remicade, but that didn't work either. My GI doctor STILL wanted to pump me full of yet another medicine, but I had enough. I had to find a colorectal surgeon on my own and I am tickled pink I did. I was not a candidate for j-pouch but I was soooo sick I had already accepted the idea of having a bag for the rest of my life. I have NO regrets.
You mentioned about complications. We have a dear friend who died after a hip replacement and he came through the operation with flying colors. He died post-op. If you looked diligently enough, you could find lots of surgical blunders. But, does that mean you would want your appendix to rupture because you didn't want an appendectomy, or suffer from heart disease because you didn't want that valve replaced? Think about it. This disease is devastating to a lot of people. My paternal grandmother died from cancer of the rectum at the same age as I am now (65) and I sure didn't want to go that route.