There is alot of money in carbon in InsaneFoamies kits (flat bar and round) Thats why the higher price, Thats also why Mark loves to fly them. Very fast snaps, ect. Option to have depron coming soon, Removable landing gear coming soon. Katana kit almost out and combos now available with hardware kit(including carbon pushrods)and all electronics! More great video of Mark Leseberg jr flying with some in the pitch black night doing Rolling circles. Website being worked on now and lots more to come so check it out. www.InsaneFoamies.com