One could always get a warranty from Square Trade, for about $125. But then there's also a $75 deductible on all claims, so you end up having to cough up $200 total for any damages. Makes more sense to just do it yourself. On a side note I'm surprised Google doesn't offer any kind of extended warranty when purchasing this phone.
Nexus 5 (current) Cataclysm ROM, Franco Kernel
MB886 (retired) NottachTrix ROM, Faux 123 Kernel