Good points Tom, I've noted an explosion in small gas engines in the last couple of years, most likely set off in part by the weed conversions and sales of Zenoah and other small gas engines. Added to the market are MLD-28, DLE 30, Syssa 30, and Aero 28. A host of planes are being offered to fit these engines. No doubt a large driving factor is fuel cost though there are other reasons like clean up and less in the way of flight box. Another factor is the standard servo strength has increased enough to handle the small gasser.

Of course electric power is still booming. We had another flyer who primarily flies 3D who sold his inventory of glow stuff and has gone completely electric. Another old timer has cleared out all glow and diesel stuff he had and is completely electric. Myself, I'm going away from glo towards small gas. So, there certainly is some transition among established modelers as well as those starting out.