Seems to be cheapest so far, and probably the best launch title for the MOVE (Metacritic score 75/100).
Also don't forget 4% Quidco.
Sports Champions is designed to showcase PlayStation Move gaming and will introduce players to a new way of playing games on their PS3. The title will utilse single or dual PlayStation Move: Motion Controllers giving it a host of features that can be played and enjoyed by core and casual gamers alike.
* Please Note: Requires PlayStation Move
* Choose one of 10 athletes from around the world in the range of cool sports including Disc Golf, Volleyball, Archery, Table Tennis and Bocce
* Beat the competition by improving your high score through detailed stats and an online leader board system that shows the world who's the best all-time athlete!
* Players have a choice of from three gameplay modes: Free Play, Challenge Mode and Champion Cup Mode