I won't buy a pin just on theme alone. I want reviews. If it doesn't get good reviews then I won't buy it, unless I played it first and like it or if I get a really good deal on it so I know I can sell it again if I really don't like it.
I'm not a big fan of the SM movies but I love the pin. I love the LOTR story and movies but I never would have bought the pin before playing it if it didn't get great reviews.
I loved the first 3 IJ movies but had never played the pin before I bought it. But I got an awesome deal on it so I wasn't worried. I have already had two offers to sell it.
I love the Corvette theme and liked the pin's play but not enough to pay what the typical going rate is. If I didn't get such a great deal on it I never would have bought it. Wasn't on my wishlist but I am certainly glad I have it.

Clash of the Titans was a crappy movie which could have made a good pin. Many possible modes. Though I'm glad they didn't since the game probably would have bombed also due to the craptacular movie.