Certainly begs the question, "Ummm...why's that?
" I'd think that $10k speakers wouldn't need to have drivers replaced so frequently that it's part of the usual business for dealers. Maybe I'm just thinking about it wrong.
Dennis' passing is tragic and permanent. This issue with the speakers, though, is just a transient. I don't say that to belittle your feelings - not at all. Just trying to cheer you up a bit about them. I'd be really disappointed, too, but it won't be very long before it's resolved.
Also, I think that you said that you really wanted to own a pair of those, and that they'd be the last expensive pair of speakers that you ever bought. Well, technically, you did own them
(goal achieved)...and now you can't buy any more expensive speakers.
So, for your sake, I hope that they don't just give the money back.