The real issue is NOISE, and tracks get shut down because of NOISE complaints. Batteries are getting better and better, and will hold a charge longer and longer as things progress. Having no NOISE from an engine opens up a lot more riding areas than we currently have now, which would potentially grow the sport, and that's huge. As a fringe sport that has had dwindling numbers over the years, we need something to get more people riding and therefore more people fighting to keep riding places open and not shut everything down.
Alta bike was just as good as my current 450, and with no noise. I was getting one until they went out of business. I like the sounds of motocross bikes, but I still wouldn't want a track next door to my house at the same time. So if we could have both, motocross and no NOISE, that would be great!!!!