#13 - Tales of Vesperia (Xbox 360)
Never have I spent so much money to play just one game before. Not only did the used copy I bought cost £55, I also had to buy an Xbox 360 to play it on for £120.
...It was worth every penny. Tales of Vesperia is now one of my favourite games of the entire generation, and also what I consider to be the most underrated game of all time. It had a great battle system, unlike anything I had ever played before, one of the best overworlds, a great soundtrack, hilarious characters and a very unique art style.