On average they are around £12.99.
£12.99 in argos
you can get 2000 points for around £19.99 @ game.co.uk
So if you buy 2 @ £7.70 = £15.40
still works out cheaper
This unique Nintendo currency is worth 1,000 points and can be used to download games, extra content and features from the Wii Shopping Channel. Download classic games from the NES, Super Nintendo, Nintendo 64, Sega MegaDrive and NEC TurboGrafx games consoles, or alternatively purchase new characters and levels for the games you already own.
choose to collect from store
otherwise they charge for delivery