Why Buy Toys?

I imagine every parents has this moment.  That moment when your child ignores and avoids all of the nice, shiny toys that you have bought for them and heads straight for the tupperware.

See?  There's plenty of interesting, stimulating, brightly colored toys within her reach.  There's a crinkly elephant, which she has been known to gum on for hours.  There is even Jacques the Peacock barely visible in the lower right corner.  And what is she playing with?  Tupperware.  Well, Rubbermaid, since I don't go to the sorts of parties where people get Tupperware.  But the principle is the same.

Humph.