How did the Dogs Playing Poker paintings become so famous?

Rabbits Playing Poker dogs playing poker painting for sale COOLIDGE, Cassius Marcellus Group of 8 dogs playing poker prints Color prints reproducing Coolidge's iconic series of canine poker dogs playing poker canvas A Waterloo , 1906 by Cassius Marcellus Coolidge Museum Quality Oil Painting Reproduction and Canvas Print 18121

dogs playing poker picture English : Poker Game, by Cassius Marcellus Coolidge from 1894, the original dogs playing poker painting sale, lot 78: realized $658,000 including hammer price