I noticed my iMac developed some kind of staining on the screen. Granted, its nothing that I would run to get fixed. It's more cosmetic than a real problem. It's underneath the glass, so there's no way I'll be able to get to it. It got me thinking, though. Since Apple only sells 5K iMacs nowadays, is there a possibility that bringing an older damaged iMac results to a refurb 5K iMac? Has anyone gone through something like that? Again, I'm not looking for a free upgrade. I'd rather deal with a tiny stain and keep everything how I like it than to complain about something minuscule and try to game the system for a newer replacement. What's Apple's policy on that?