I never heard of Odaiba until I set foot in Tokyo, and Odaiba was pointed out to me on the bus ride to the dorm. From what I saw, it was next to the water and there was a boardwalk and colourful awnings along a 2 story building facing the water. It seemed nice enough, I never thought about it much after that.
But then my friend Michael suggested we go there because he'd been there before and its super gorgeous. So while a boatload of the other students went to Harajuku, me and Michael went to Odaiba. Since I'd already gone to Harajuku, and going with a big group of people wasn't very appealing, I decided to forgo that trip. I'd rather go back to Harajuku another day on my own, or with 1 or 2 friends.