The folks you know are outliers. I know many radiologists and the norm is about a third of this. If you worked in a partnership, no way your partners would be okay with each earner being away from the images for this long; that means they are foregoing tons of income as a partner, and in the days of tight margins on reimbursements, this doesn't fly. Sure you may meet some semi-retired type who takes a lot of time off, but don't kid yourself that this is typical.
I think folks in pre-allo get carried away with how "lifestyle" the lifestyle fields are. You will work hard even in the ROAD specialties. You probably will work 60+ hours with 4 weeks of vacation tops in the early years, and then maybe if you are lucky you can leverage younger people and work fewer hours later on. And that's a big maybe as the insurance industry and government are doing their best to slash the profit margin per hour in fields like this, forcing folks to work harder to earn the same as what they got last year. You will work hard in medicine, even in rads. You will not be taking 14 weeks of vacation a year. Sorry, but you are kidding yourself.
Are we talking about radiologist in general, in academia, just out of residency, private practice, or all of the above? In all honesty, the radiologists that I know (just out of residency) in private practice, are >12 weeks of vacation/year, in the first year. The most recent one had 12 weeks his first year, and he's at 16 weeks in his third year in practice.
Academic radiologists also make $250-300k/year... Private guys make that in 6 months, working half the hours.
At my father-in-laws practice, he has 2 new partners (they just made partner and were fresh out of training when they joined 3 years ago), and they are always traveling around the globe, enjoying their vacation (16wks/year). At his practice of 12 partners and 2 non-partnered radiologists, the normal days/year worked is 180, with some people working 250 and others working 150. Why do they work so much more? Because they like their $1,500,000 house in the mountains, as well as their $2,000,000 house in the city that they live in.
Comparing private radiologists to academia is not a fair comparison. The money isn't the same, the work isn't the same (private rads read so many more images/day than anyone I've seen in academia), and the hours aren't the same. Even the personalities are different...