On the surface Tuff Gong, everything you say is accurate. No one would argue with the good parts of being a radiologists. I am thankful to be in this profession, and yes I have the paid off luxury car and mansion in the gated community etc - all made possible by rads.
However, once you have the creature comforts you have desired, you start to become enlightened to the fact that they do not really bring much happiness or contentment. It is great to have financial freedom, but in reality there must be a higher meaning to your career and/or life to remain satisfied. You begin to question what motivates you in life and what you want out of your profession.
When I am sitting in front of a computer on a Sunday reading garbage cases out of the ER over and over.... it is not very satisfying, even if I do it from the comfort of my mansion.
We, as physicians, are an intellectual group, and frankly grubbing for money and material possessions is not really what drives me - it is using my brain, learning new things, exploring new avenues of thought etc. I feel gifted to have been given a strong intellect and curiosity about the world, and would like to spend my time using it. Sadly, radiology in private practice is often devoid of this need.