Yep - couldn't agree more. The longer I'm married, the more resolve I have to be able to carry out my interests in my own way. Since audio is one of the few things that I'm really avid about, the fact that I want something that looks "too macho" or requires specific placement, etc. etc. is something that needs to be accomodated, not rejected. I don't get hassled (nor would I listen to it) about how much I spend on CDs either.
I'm very happily married for 13 years and counting, and I think a major reason is because we both have things that are important to us that the other couldn't care less about, but supports.