CapitalismSucks DonkeyBalls
Banned
I just watched DoS last night with my wife and while I have not read the book, I think my question is still valid: why does Smaug need/want a giant pile of gold?
Silly dragon, you don't need gold.
Nah, it's not really valid. You're questioning why a dragon that speaks and is highly intelligent would want to hoard something as powerful as gold, and you're basing this off watching the movie.
Smaug was greedy because he understood how powerful this gold was. Not necessarily to him, but to the dwarves of middle earth.