It isn't that Epie is unhappy working in Santa's Workshop, because he is a happy elf by nature. It is just that he has been unable to follow his dream of moving to Southwest Kansas and work for the Epic Touch Company.
However, Epie comes from a long line of toy makers and close family ties prevent him from following his dream. The next best thing that he can do is wear his hat with the home made Epic Touch logo and pretend.
Maybe someday Epie . . . maybe someday!