A Product Worth Buying: Imagination Playground

I so appreciate the thinking that informs Imagination Playground: Provide kids with open space and portable blocks and observe how they make their own play space and what gets enacted and invented within that made space. If I had a school, I'd invest in this type of product along with lots and lots of blocks, sand, water, paints, musical instruments (especially different types of drums and sticks), and other stuff children can find and use to make things.