I've saw some brushless MOA Losi's, I think in a berg or bully room for the longer motors and sensor wire might be an issue along with cost.
After my sensor wire died (silver 18.5 Novak, non-replaceable) I bought a slightly used 45t Tekin yesterday morning to see what all the brushed hype was all about. First thoughts were lame, fawkin lame, torque was down and wheelspeed took a huge hit, dragbrake didn't feel as strong on 10 as brushless did on 4. I expected to lose the wheelspeed, but had expected to gain torque, not lose it. There was something about the lowend feel of the brushed that was better, I wouldn't call it smoother but it seemed easier to follow a line, unless that line required a bump of power, then I was screwed cause the power wasn't there. I picked up a 3s pack at lunch and ran it for the afternoon, the extra voltage put the torque and wheelspeed about equal to the 18.5 on 2s. I'm gonna pratice and comp for a while with this setup before I ditch it, but long term I see me going back to a 18.5 with a 13mm rotor on 3s or a 14mm on 4s to put down some real power and gain a little more wheelspeed.