We're not all fortunate enough to have jobs we might want to work at forever. But some of us are doing just that -- and instead of reinventing retirement, these folks are avoiding it.

Take the case of Judge Jack Weinstein, a spry 96-year old who has no intention of retiring. He was appointed some fifty years ago but isn't about to give up his profession now. He tells The New York Times, “I’m a better judge, in some respects, than when I was younger. I don’t remember names. But I listen more. And I’m more compassionate. I see things from more angles. If you are doing interesting work, you want to continue.”

Other elders love their jobs. Consider Warren Buffett, still an active investor at Berkshire-Hathaway at the age of 87. Or Adolfo Calovini, perhaps less famous than Buffett but no less active. Also mentioned in The New York Times article, the 82-year old Calovini teaches English as a second language at a New York high school. An immigrant. Calovini has a special understanding of the students who take his class. He tells The Times, “To me, teaching is about life. This is what I do. I can’t see a time when I wouldn’t.”

Weinstein, Buffett and Calovini are just examples of the 1-1/2 million people still working after the age of 75, reports the Bureau of Labor Statistics. The Bureau estimates that almost 11 percent of the workforce will be age 75 or older by 2026.

If you have a job you love, consider yourself lucky -- maybe it'll be yours for life.