Good idea. Imagine the serial would be the same, but will do this anyway. I mean, they've replaced it once already. I asked how a repair would be different from going to buy a new one off the shelf, and she kind of danced around the question. Not sure I'm entirely convinced this will solve anything, and if this is a known resolution, why it took her so long to come up with this answer (and having to speak to colleagues).
I'd be curious to know how many others with open support tickets will also get this remedy, or if this was just some hail mary to appease an already frustrated customer. I do know that if I send it out and am without it for a couple weeks, and it comes back with the same issue, I'll be even more unhappy than I am now.