Hell I'd take, nay, I'd pay premium for a Nexus 5 (pre-X) updated with new components. In fact, I reverted to my Nexus 5 when I found that it's still working fine after 2 upgrades, and it is a pleasure. Sturdy, light, perfect form factor, solid battery life 5 years on, and gets all the new Android goodies.
I miss the good ol' days when smartphone form factor wasn't expected to accommodate portable video playback as a first-class citizen. Honestly if I want to spend extended time watching a video on the go I'll carry my tablet with me =/