So my GNex is getting long in the tooth and I'm thinking on a new phone. I am grandfathered into VZW unlimited data and run the house off of it to the tune of around 50gb/mo. I was looking at the Galaxy S4 (I do like Samsung) but it seems pretty darn locked down in regards to being able to run custom ROMS on. Any input on what else I might consider? Obviously to keep my current plan, I'll be buying my next phone on the open market ...