Definitely true where I fly. I've never seen an OS transmitter.
ORIGINAL: Snoop Doggy Bag
Same concept in Transmitters (going with the flow)
ORIGINAL: w8ye
As Jimbo says, value has a lot to do with which engine you buy. Believe it or not, there are flying fields where you will never see a OS engine. Then there are others where OS is about all you see.
Enjoy,
Jim