But I have been biking daily for morethan a decade, and was a daily bike commuter in the bay area for ~15 years....
I see many recumbent bike a day when on the trail. At least >5 a day.
My house backs up to the American River trail, I literally leave my house and get directly onto the trail in less than 2 mintues.
Recumbents are all over the ART in the Sacramento Area.
One thing I have noticed though, and this is just a statistical observation on my part biking that trail regularly for ~2 years...
The average Recumbentist is a White Male, Typically with a beard >50 years old, 30% are overweigth, 30% are average build, 30% look semi/more-fit, 10% are female.
They look fun though. I'd love a long distance camping -e-bike version of one with a trailer and a detachable, light, curved windscreen that can be put on the top of the trailer when one wants.