I dropped my Z3 on a tile floor and smashed the screen a few months back. I called Sony and they said they could replace the screen for around $100. I sent it to Ontario and had a new phone in my hands four days later (I had to pay for shipping one way, which sucked). I have done some reading online and this seems to be quite normal for Canada, so maybe see how the replacement goes before jumping ship? I think they are doing the "under promise and over deliver" thing.
I should add that I am not aware of anyone who actually likes their S5. Try to talk your way into an S6 at least.
