I believe autos can also come in reg seed. However there are a lot more fems out there, due to difficulty breeding, not taking clones is a big drawback as well.
However with proper training, autos can yeild just as much as photos. But I doubt they ever would come close to a photo done outdoors.
Indeed, ruderalis in nature is not feminized, I've only rarely seen regular ruderalis seeds for sale, mostly for breeders who want to develop an autoflowering strain.