Yahtze Challenge is rediculous

Challenge #16 in the 25 Holiday challenges asks for players to use 50 wild dice.  This seems like a revenue generating ask from POGO.  To play enough Yahtze games to generate 50 free wild dice would require over 43 consecutive hours of game play.  The only way to acheive this badge is to pay for wild dice.  Does anyone know of another way?  You can't move on the the remaining challenges unless you finish this one.  I have been a Club Pogo member since it started.  This is the most rediculous challenge I have seen.  Shame on Pogo