long term or short term cost? we run brushed sport tuned here and i've already used up 4 motors this year. That is pretty much equal in cost to a hobbywing 12t motor/esc combo system that i have, which is still running well after more than a year. And not to mention the speed difference between one sport tuned to another can sometimes be obscene. Newcomers to the mini class gets turned off too when they see they have to spend money on a brushed esc. Not everyone have a brushed esc left somewhere in the pit box.
Brushless M-Chassis please....