I wish I could help, but I'm not a musk lover myself. I really relate to your question though, and I'd love to know why musk is, or was at certain times, the big stuff in men's fragrances.
And it seems like it was really big stuff. The stereotype is men wearing cologne were all musked up. I think of Saturday Night Fever and Travolta probably in heavy musk. For some odd reason, we think chest hair and the men's fragrance that comes to mind is some musk.
Yet I too merely pass over it and think of the other parts of any scent that has it. Or I think a musk scent is rather boring. I had Molinard Musc, but gave that to a girlfriend I didn't like. I have LV Musk but it doesn't do much for me. I dig Mure et Musc and Mure et Musc Extreme, but I don't know that it's for the musk quality; I dig the blackberry and floral qualities they have.
Musk doesn't make much sense to me either.