Exactly. I mean there are basic things for which you shouldn't have to hunt models. Anything with the basic size, shape and weight should have the standard ports and connectors I am guessing they are cheap enough. Having to shop for a different line of laptop for want of 2 USB 3 port is ridiculous. This is a made up example but you get the meaning.
What I think can be reasonable price points for laptop
Basic build vs. premium construction (Non-plastic super rigid maybe)
Weight (regular vs ultra light)
Ports, keyboard, touchpad should be standard I think. Maybe premium ones might have the latest techs but nothing should be atrocious.
The next bit should be priced based off whats chosen but really most cpu, ram, storage, display should be available on all model. You might restrict the premium to some high end configuration but even on a non-premium build you should be able to get high end display for most part.
What you shouldn't end up is having a $1400 vs. $1500 line of products where the $1400 has got better ports or display option then the $1500 laptop.
What I think can be reasonable price points for laptop
What you shouldn't end up is having a $1400 vs. $1500 line of products where the $1400 has got better ports or display option then the $1500 laptop.