Hi Jim.
You would be surprised how many lone riders are out there just whizzing round cones in the sure and certain knowledge that what they are doing could be REALLY important. As we act as the central point of contact for Moto Gymkhana riding groups all over the world, we have seen a great many people just like yourself starting with just one or two riders, but by giving them a set of rules, regulations, systems, methods and procedures other people soon join in because the riding finally has a purpose!
A good example of this is Vulfy up in New York City who started out on his own, but now attracts quite a few riders to his practice events. Way over the other side of the world in Viet Nam a chap called "Wild Akai"did the same and now organises full-on Moto Gymkhana events that attract a significant number of riders.
Keep plugging away as it will soon come good!