W. Buffett: radiation therapy as right decission

I have seen news:

Warren E. Buffett says he is done with radiation treatments for prostate cancer, and the prominent investor seems eager to return to work.

Mr. Buffett, the chairman and chief executive of Berkshire Hathaway, broke the news on Friday while speaking to a group of executives from newspapers his company owns. “It’s a great day for me. Today I had my 44th and last day of radiation,” he said, according to The Omaha World-Herald, which is one of those newspapers.

Mr. Buffett disclosed in April that he had received a diagnosis of prostate cancer. At the time, he said the disease was detected early and was not life-threatening.

But wait a minute! Buffett is one of the richest man in the world! How comes that he uses this old-fashioned "non-targeting" treatment (radiation is par excelence non-targeting approach)? Buffett had to afford every possible treatment which exists in the World and he chosen... radiation? Is he crazy? No, he knew (or his doctors knew) which approaches are reliable and efficient. And they are absolutely non-targeted. Bravo, Mr. Buffett! Good investment in your health!