You might enjoy this example of specialization from the world of consumer products:
Would this anti-itch, anti-friction powder work on other parts of the body, and perhaps even on other genders of people?
Of course it would.
But what opportunity would they be passing up by generalizing the product's usefulness? They'd be swimming in a very crowded swimming pool if they didn't specialize.
And they'd miss out on some cool visual branding opportunities too. ?
I'm not an Anti Monkey Butt customer, but if I ever needed that kind of relief I wouldn't have much trouble remembering a specialized product, and that would be the first one I'd try.