compared witht he price i paid for my mtx4 when it was available in the shop in the first day, the price of the 5, as i know, increased 50% in price;
of course, the yen rate is up by more than 50%.
running a 1/8 scale is almost cheaper than a 1/10 now a day. at least the 8th doesn't need to have so frequent maintenance, at least doesn't have to try out so many viscosity of silicon in the differentials.