We bought this many years ago because our son enjoyed the Up &amp; Down Roller Coaster so much, and he was getting a little bigger for it. Well, it was a hit! No only with him, but also with all his friends and later his brothers. And they still use it! They are so happy, that we decided to buy another one. So now they can play races. Having 2 carts has allowed them to create a whole new plethora of games. In the long run, this has been the cheapest toy we have bought taking into consideration how much use it has had. BEST-TOY-EVER.