Any of you Nexus 4 owners upgrading to N5?

Me personally, I don't feel the need to. My phone still looks brand new, runs very smoothly, no usual time-induced Android slowdown. As tempting as the Nexus 5 seems (especially after knowing its true specs after they leaked), I think I'm gonna bow out this year and wait till next year's Nexus before I upgrade. Plus, the N4 will get upgraded to KitKat anyway so I won't be missing out on anything (unlike anyone who doesn't own the latest iOS hardware).

To any of you considering upgrading from a Nexus 4. Any reason why?