We announced the news that LEGO was revisiting the fair with the Creator Expert 10257 Carousel back in April this year. The set has been available since June 17th and is priced at US$199.99 / £159.99 / 179.99€ for 2670 parts and 7 minifigures. While the set is not motorized, it can be rotated via a hand crank, and there is the option to add LEGO Power Functions once your hand gets tired from cranking. The carousel is 38cm wide and 32cm tall so you will have to prepare some display space for this large model.
This isn’t the first carousel to be produced by LEGO — 10196 Grand Carousel was on sale for a short time between June 2009 and November 2010, with limited availability. As a result, its after-market value has increased to make it an expensive buy for fairground fans. 10196 Grand Carousel was priced at £179.99 / $249.99 back in 2009 for 3263 parts including Power Functions, a Green 48X48 Base Plate, and 9 minifigures (it now commands $1-2k on the secondary market)