there goes the quality control.
Tbh I've always found the Nexus stuff to be pretty well made, certainly not of lesser quality than any other brand of device, depending on the manufacturer.
I got a N7 in August 2012 which I still use today. The main reason I want rid of it is that they've got bad flash memory controllers on them which cause them to slow down drastically over time and not really perk up despite TRIM integration.
Also have an N4 which is LG and have had it 18 months with zero issues and is still going strong. I've never had a smartphone for so long without feeling an itch to upgrade it and it performs as well today as it did when I got it. I ordered it from the Play store for £239 and it was price reduced a week later, so they refunded me the difference (£80) which I honestly don't think many companies would do - they'd sooner just say 'tough'. So it cost me £159 sim free.