I think everyone I know who's gotten married keeps their wedding dress in the same place - nestled in a high quality dry cleaning bag in the back of her closet. What the hell else are you supposed to do with it?
Here's an idea. THIS. DO THIS.
Photo Credit: Mannequin Madness
If this isn't the most perfect way to display it, then I don't know what is. Especially if you paid a ton for yours.
God, I love this idea.