I have cancer in my family and am on Humira (and have taken Remicade and Cimzia). The way I see it, I would rather be happier and in less pain now and have the slight risk of getting cancer later than being miserable my whole life due to the slight risk. I guess you just have to pick your poison.
Crohn's Disease, Acid Reflux/Gastritis, Hashimoto's Thyroiditis, Endometriosis, Arthritis, Depression/Anxiety. Too many meds to list them all. =)