I have compromised on some things over the past few years. Storage wont be one.
Google is really missing the mark on storage. I get they want everyone to use the cloud, but the simple fact is between areas of no signal and limited data plans, most people aren't going to keep their music in the cloud. Or maybe I'm off-base and they are simply trying to deliver an economical device and not be all things to all people with the Moto X.
It's interesting to me that while Android devices skimp on storage, sometimes not even having an SD, Apple keeps adding storage with every new model.
While we're on the subject, the other dumb thing is some apps will only utilize the external SD. So if you swap SD's or want to dedicate it for your media content you'll have issues.