In NC there is basically now 1/10th scales running at the 3-4 tracks I go to, except SCT of course. There is usually several of them, but nitro 1/8th buggy is still, by far, the biggest turnout. I just got a 1/8th scale buggy converted to electric and I have never had so much fun racing! I started out about 3 years ago when short course was starting to get popular and got a 2wd slash. Did that for a year and wanted to go faster, so i got a 4x4 slash and raced it until a few months ago. The 4x4 SCT class was bigger than the 2wd SCT class for about 6-8 months, now they are disappearing and the 2wd still hang around.
The 1/8th scale electric buggy class is still trying to catch on around here. It seems like most like their fuelies! I have had to race with nitro buggies before, but I finished in the top 3 every time!
I hope 1/8th electric continues to grow!