Jonathon, the other thing that you may want to carefully consider is not the elimination of pain as a primary objective but of inflamation.
My decision to start on a biologic was not influenced by the pain as I have been athletic all of my life and for a long time lived by "no pain...no gain". But when my rheumatoligist explained to me that long term inflamation was what was causing the damage to my spine and hips(fusion and curvature, etc) that kind of tipped the scales for me. Something you may want to consider.
My damage was slowed by 43 years of weight training and other athletics but I still have disks trying to fuse and had lost 2 inches in height by the time I was diagnosed.