to add to this subject I would like to add that in our area we have seen the # of entries in our regional electric race series(MORL) more than double over the last 3 years.In 2006 we were seeing an average of just over 100 entries per event,In 2009 we averaged around 225 entries with our largest event of the season pulling over 250 entries.Alot has to do with the ease of use involved with electric now.No more turning comms on motors, or cycling batteries in between race days, and a few other perks that have brought new faces to electric,but have also contributed to bringing alot of guys back to electric that jumped ship to run nitro in the 90's.
Other contributing factors to the rise in #'s for us have been adding E-1/8 in 2008, and then adding slash spec and ROAR SCT in 2009 on top of the standard 1/10 electric classes.