My wife is supportive - even offering to buy me a pair of Avantgardes for Christmas last year. However, keep in mind, it's not just women - 98% of men probably don't think "it is normal (nor necessary) to drop $15,000 on a pre-amp". If your fiancee wanted to spend $15,000 on a pair of shoes, would you consider that "reasonable"?
Wife Acceptance Factor
I hear alot about Wife Acceptance Factor when it comes to equipment. I'm getting married in 6 months. Fortunately, my fiance is pretty accepting of the hobby. Just curious about all those guys out there who have a family and are still allowed to invest their spending money almost entirely on audio equipment. After you get married, do most women step in and try to squash spending on this hobby? Opinions welcome!!!