Or if there’s a grouping like GP describes, you can quickly ascertain which model is the one you want.
That's true, but how does it help you as a customer? Wouldn't you need to know what you needed? What is the benefit of buying an X110 over an X109?
https://dilbert.com/strip/2002-06-11
I don't like "it's just a number" schemes, because they look like transparent attempts to get you to buy something for no reason. What's the difference between 3G and 4G? Well, they changed the number. Does that mean anything? How would you know?
Or if there’s a grouping like GP describes, you can quickly ascertain which model is the one you want.