Jim, I agree that demand and raw materials costs effect pricing. The point I was trying to make is that the mindset that dictates that an .074 should automatically be priced lower than a .46 is suspect. If 90% of all my planes fly with .074s, for example, and these engines last five or six seasons, then its displacement becomes irrelevant. It's not a matter of engine size, but of engine reliability, relative power and longevity. If I get as much enjoyment and return from my .074 plane as another person gets from their forty-size plane then what difference does it make how big or small the engine is? If they both cost the same to get into the air, so what? I'm simply agreeing with eniac that paying $75 or $80 for an .074 - if that's what you like to fly - isn't outrageous. People who run .46s expect to pay that much and how can anyone prove they have more fun, or get more for their money? That's all I'm trying to say.

David