The price for the DSi in the UK will be 149.99 And if you buy it in a GAME Store they will take a 20 Deposit so in total it will cost Arond 170 in the UK and it is coming out o the 3rd of April. User Info: Wolflink246. Wolflink246 - 8 years ago 0 0. They said it cost $170 plus tax and it comes out April 5.