I know that it is a personal choice but I would like to hear about some pros and cons.
I've heard that salt water is harder and more expensive to maintain. I've always know that the fish are more expensive. I also checked out the article comparing fresh and salt water fish based on their appearance so I know you can get a salt water look with a fresh water tank.
I love the corals, feather dusters, and all the other critters that live in salt water.