For hardware? Absolutely. 

Better security, lower price.

And then #grapheneOS on top.

Seriously, think of it this way--you load Linux on someone else's hardware. AND that hardware comes with a base set of requirements needed by Linux in order to function.

To meet the security requirements of graphene (which is why most of us want to use it) most hardware manufacturers devices don't meet that specification.

If you want to have a less secure phone, you can certainly load #lineageOS that works with multiple hardware vendors.

But why would you want to do that?

If you're going to break away from Apple and Google, wouldn't you want to use the very best and most secure hardware out there as a starting point?