I don't know how old you are, but at a certain point, the input of a general practice doctor becomes very valuable. Remember, the doctor doesn't even do the little tests you mentioned, like taking measurements and blood tests - they just order them, and nurses or technicians do the work. The doctor's job is to make decisions and give advice.

About a dozen years ago, my doctor caught my blood pressure shooting up in my annual exam and started treating me for high blood pressure. High blood pressure is a "silent killer" that leads to premature deaths for millions. You don't feel sick, while your heart struggles and your brain risks explosions. And treating it, once diagnosed, isn't straightforward. It took six months of experimenting with various medications to find the combination that worked for me. That's a doctor's judgment and expertise, not something for some technician with a community college associate's degree. And this summer, when a critical potassium depletion drove me to a scary ER visit, she noted that one of my BP meds could affect potassium and adjusted my dosages.

And it's not just an expert-system thing that could be replaced by a robot, either. She's not just dealing with my measurements - she's dealing with my fears, and helping me decide on best approaches. That requires a human touch.