Nexus 6, or newer device?

I'm looking at upgrading my current device and have been eyeing the nexus 6 on that amazon sale for a little while now. I just want to ask for some opinions. is this device still worth a buy, or should I look at waiting for the new nexus devices (the 5x really doesn't interest me a whole lot, but maybe I'm missing something there) or should I get the moto x pure edition over the nexus 6? Thank you for any thoughts on the matter.