Ansich an insanely good idea from Nintendo, but with the price of tickets you have to be careful. Online via a credit card you pay for exactly 1000 points 10 (we can buy the card even at this price on Amazon), but unfortunately this is rarely the case with mail order companies. The price at online retailers is usually higher, so there we only 4 out of 5 stars.
It is worthwhile to compare the prices, possibly sometimes look at Saturn and Media Markt, if there is not to be had for 10 1000 Points.