hugo decides to buy his Christmas gifts on black friday. to simplify his life, he is giving his $10$ closest friends scarves for chrismas and everyone else christmas cards. Hugo is willing spend $200$ on the $10$ scarves. When he arrives at macy's at $5$:$00$ am on black friday he discovers that scarves are on sale for $12$ each. Hugo buys $10$ scarves and uses the remaining $80$ to buy himself some clothes. Assuming Hugo follows the Rational Rule for Buyers, why did Hugo only purchase $10$ scarves when they were on sale? Shouldn't he purchased more since they were such a good deal compared to what he was willing