i've kept my brushed stuff for my son who's 5 in June, i'm sure he will find a use for it in a spare car
Anyways, back to topic.
Brushless motors will always be easier for the racer to look after, you dont need to strip it down much in it's life, just now and then to clean it out.
I was very much into brushed motors, but since brushless and converting, I see the benefits (You just need to be more careful on gearing and esc setup)