The great thing about it is, the 2 weeks only start when you receive the item. And you can return for any reason. So I'd say the following: if the device contains _annoying_ dead pixels which you are unable to fix, return it. Simple. If they don't bother you, or you can't notice them (likely means they don't bother you) then stick with it. That's the rule of thumb I use with regards to screens. I only had once (in what was it 2003?) that I had to return a 2nd hand monitor from Germany to Netherlands with too many dead/stuck/whatever pixels. And I don't care that they find it possibly annoying. I'm not swimming in easy money...