Several years ago, I had a shoulder injury, and the doctor told me I might need surgery to fix the small tear in my rotator cuff. So, I asked, "Doctor, if I have this surgery, about how much will it cost?" He looked at me confusedly and said, "Steve, I've been doing these surgeries for 20 years, and you are the first patient to ever ask me what it costs!" Then he thought about it and laughed: "I don't know how much this will cost you." Wow. Health care is one of the most expensive items we buy each year,...