When people go to museums and see a sculpture made out of...

When people go to museums and see a sculpture made out of marble, they appreciate it but it's very doubtful that they will go home and have a slab of marble they can chip away at, but people do have LEGO. I don't have any LEGO specially made for me, all of the shapes, sizes and colours I use are available in stores so that if someone is inspired to create on their own, they can go and buy the very same bricks.