Shadowrun-- did not have high expecations when it first came out. Bought and haved played/owned rules of the various editions. Looking foward to
4th edition.
Castles and Crusades-- peaked my interest but even with the reviews, I was not sure but been hooked ever since.
Harp-- I was a big Rolemaster fan and was not to sure if Harp could do any better. Surprised that it has become one of my favorite games.
Vampire: The requiem: I was suprised that with the game and it blew my socks off better then the oWod. The WoD rules kick.
Witchcraft: Seemed strange but bought the book and loved it. The only sad thing was I could never find anyone to play it.