
I dont think its the names that make them designer dogs, its the hype and the patter that goes with it.
Ive never yet seen a Sprollie or a Sprocker, as a 'designer dog', although ive seen both with such names in rescues and for the sprocker, as working dogs (springer x cocker).
Quite why they havent taken off i dont know but i would assume that sprollies are invariably too big to appeal to the tiny weeny designer dog market, and they will shed, and they are hard work so dont really appeal to the pet market.
See a fair few odd crosses for agility, poodle x collie is one. I just dont think they have a market they can really be aimed at, unlike the 'doodles' which are marketed as being non shedding (which isnt the truth), and the tiny weeny dogs that are just 'cute'... and sold to morons....
Im confusing myself now.
As far as wockers and sprollies and sprockers go, the names came along way after the dogs themselves did.
Where cockerpoos, puggles, etc are concerned, these dogs arise out of the desire to make money from something purportedly 'special' and 'rare' and 'desirable' and the names invented to help drive that.
Ive never heard anyone describe a sprollie as a rare or special new breed. Ive heard plenty describe a cockerpoo as that though..