Had both mine off too. It's not a fool proof way of bomb proofing yourself but, for some, it alleviates some of the stress.
The regular check up thing is a bit of a mystery. If you are not having scans or tests, why are you going? I only go to the oncologists when something feels wrong and I need specialist advice. My back started aching so I got my GP to organize a bone scan--if it had been sinister I'd have gone to the onc. No point in turning up when they just ask you how you are, charge you then send you home.
I couldn't agree more that listening to your body and chasing up anything that doesn't ring true is more likely to save your life than relying on random tests or checks that often miss what, you would think, should be obvious.