ORIGINAL: flycatch
Glow fuel is expensive and gas is cheap. This and the size of the model should determine which route to take. I switched from gas back to glow because I didn't like the smell of gasoline. Why is glow so expensive and the answer is nitro methane and our EPA.
I too prefer glow. Not as much smell but I like faster planes and not quiet ready for turbines. Sure the clean up is worse and the cost of glow is high but FOR ME it is easier since I have so much glow stuff already. I have tried a few gassers and have a couple now but I reach for my glow planes alot more often than I do my gas planes. With that said, being several companies are making small gas engines now that are close to compariable size glow engines. If I were just coming into the hobby, I would strongly consider gas to start with. There is not as much support equipment needed, cost are similiar, and the fuel savings.