"Tim Cook sent me a Christmas card again ... saying he's going to sell me an iPhone this year," Buffet said. "He keeps sending me these reminders every Christmas."
Apple didn't immediately respond to a request for comment as to whether it will increase the pressure on Buffett to ditch his folding phone and join the iPhone fold.
The celebrated investor isn't alone when it comes to famous folk who use a flip phone. Why, actor Chris Pine insisted last year that "the flip world is a whole world you gotta get into."
Rihanna and actor Christopher Walken are two others who've professed their commitment to flip world.
Should Cook be worried? Perhaps not. On the contrary, perhaps he should be concerned about Buffett (and the others) capitulating. The storied financier suggested that he himself may one day be the last man standing between Apple and the aforementioned market saturation.
Buffet said of the iPhone: "When I actually buy it, it's all over, folks."