Any advantage of going from a S4 Google Edition to a Nexus 5?

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http://forums.anandtech.com – I'm a phone junkie. At the same time, I'm a pure Android Junkie - On almost any phone I buy, I immediately root/unlock, whatever I need to do and install a AOSP or Google Edition rom on my phone. I currently have a Samsung Galaxy S4 Google Play Edition, with stock Jelly Bean 4.3 I was a big fan of the Nexus 4 other than the camera. I actually use my mobile camera more than my good camera. It just plain sucked. Anyone planning on going from a S4/HTC One , etc to the Nexus 5 on launch? Good thing about the S4 Google Edition is the camera quality is just as good on stock androi (Hardware)