Why this painting of dogs playing poker has endured for over 100 years

Jackson Arn in Artsy:

The “Dogs Playing Poker” paintings, by Cassius Marcellus Coolidge, belong to that pantheon of artworks—Michelangelo’s David, Da Vinci’s Mona Lisa, Botticelli’s The Birth of Venus, Van Gogh’s Starry Night, Hopper’s Nighthawks— that are immediately recognizable to people of all ages and backgrounds, including those who don’t readily admit to enjoying art.

So how, pray tell, did a pack of dogs playing poker outlast so many other “serious” paintings?