I brought my ds in america last year with loads of games, if did work out cheaper but the exchange was about 1.80 at the time. Have a look on the gamestop website (the us equivalent to Game), you can check the american prices and compare them with the uk prices to check if your saving money. Most games are about $39.99, but you can get the pre-owed games alot cheaper and they usually look and play like brand new games.