Dokapon Kingdom
A friend recommended it to me, and said it was really fun. I was like, "okay" and thought I'd check it out if I ever saw it. Found it used at Gamestop and picked it up.
And holy crap is that game fun. Seriously, it's like the only board game/RPG hybrid I know of. You get equipment, fight monsters, level up, and save the world... except you're also fighting the other players (up to 4 total) to get the most Gold and win the hand of Princess Penny. So much fun. Highly highly recommended.