Yes, it is a wonderful and very romantic idea. "Men ~ take note. Very romantic idea. If you don't know if she has the dress you want her to wear, buy her one and make sure it's a stretchy fabric so that you have a better chance at getting her right size.
I didn't need or even want to be with the best-looking man in the room, but the one who inevitably got my attention was the one whose eyes held a glint of something magnetic: humor, mischief, curiosity, a sense of adventure.