Allowance & What is the going rate for the Tooth Fairy?

We decided that Sven can manage some of his own purchases, so after much debate and asking around, we decided on $2.00/week. Immediately, he started saving for a black flashlight that he saw at the Olympic Sculpture Park. So far, its been a mixed experience. Sven values his own purchases much more. However, now, when we got to tourist attractions, we have to give him some time to shop. He is much more picky about what he wants to buy though, so when we went to Vancouver recently, he considered several items, but didn't buy any of them.

Our next challenge - what does the Tooth Fairy give out these days? Sven has a very loose tooth, that may be coming out any day!