>>134243159Three hats.
One for winning the most duels (you're probably gonna be buying a lot of keys to afford a lot of duel minigames)
One for giving away the most items via the secret saxton purchase thing
And one for using the most stamps.
They stay with your character FOR ONE DAY, meaning you get to whore out how cool you are for having this obtrusive fugly hat and be a special unique snowflake.
And to do it, you're paying out the ass to afford the action necessary to do it while competing with other people who are also paying out the ass.