My brother and I both got Legos very early in our childhood. We may have put the models together once when we first received the new set, but they were disassembled soon after when we got tired of them and the pieces were put in a large laundry basket. Eventually we had two giant laundry baskets full of legos. We spent hours for days for weeks for months for years building anything that came to mind--castles, machines, space ships, you name it (not a working grandfather clock though--that's awesome). Aside from the swimming pool in the park across the street from our house, the Legos were probably the best "babysitters" we had. I think they had a lot to do with the heightened creative abilities that he and I both developed. If I had kids, Legos would be one of the primary toy sets I'd get them once they were old enough to know not to try and eat them.