I think it is the more experienced drivers, the ones with money to spend on whatever they please for their car thats puts a lot of people off. If a minor league were created, one for beginners, not one that put the novices against the pro's with multi billion dollar car's (sarcasm) then it would let them build up experience first, not going straight for the fastest thing avalible.
The minor league is going to consist mainly of young people due to older people more than likely already having experience in this field or having the time to develop their experience much quicker than younger folk, this would make a brushless motor virtually unheard of due to lack of money and experience making it a much more competetive scene for less experienced drivers with middle of the bunch cars.
But until such a league is created and developed by rc racing organizers, new starters are going to see the pro's cars and go straight for what they have to try and compete.
What i think anyway
Oh and im not saying anything bad about experienced folk, just saying pitting them against newbie's is whats causing the problem.