This is not so much because of electric motors, they have reduced demand somwhat, but not as much as you claim. ASP is still being sold, in fact they now sell more under the Magnum brand than they ever sold under the ASP name. MDS had quality control issues, and the manufacture found business making other items. MVVS was more of a problem of the devalued dollar. MVVS prices went up, but you could still buy Chineese engine. I think you can still buy Thunder Tiger but not as popular due to quality??? Not sure about them. I suspect OS is still in demand. Most people buying electrics have not given up glow, though most fly them less than they did.