Just guys being guys! My wife is very supportive of my hobby, but she isn't less expensive, that's for sure.
My GF is the one with the big bucks since she is still working (Chanel, Hermes, LV and other designer stuff makes headphones look cheap in comparison), I'm retired so have somewhat of a very variable fixed income, I still do some consulting work for project/construction management to make extra spending money. For me my GF is less expensive since she just buys what she wants and is not dependent on me for anything.