I could literally never spend that much money on a pair of headphones I have not tried. And I just don't understand people who do, either. Is there really a hobby in blind-buying expensive headphones just to own them?

I have 6 pairs but they were bought to fulfil purposes that I identified through hearing about them and confirmed by listening to them. And I didn't always buy the ones I'd heard about.

I started with HD650s and HD25s because I inherited them from my dad (the HD25s were his in-flight headphones from Concorde, they're still branded). I found the 650s often sounding very dull with a lot of music I like, so I bought Grado RS2Es which compensate well on that front and also add a bit of a spatial separation which I enjoyed enough to decide I wanted them. That said they majorly lack deep bass and I found myself wanting something that could really do sub bass properly, which Audeze were a clear contender for, and after lots of testing I arrived at the LCD-2 closed back, being my favourite. So I bought that. I also have Sony MX4s (over ear) for flying as they are ANC. I liked their sound a lot but didn't want to always carry the big case around for my daily commute, so I bought the in ear version as well.

What I'm getting at here is that every purchase was made as the result of me identifying that I wanted something specific, and trying multiple models to identify which one did that best for me. I have never just gone and bought headphones off the cuff because to me there is simply no point. I don't understand what you gain.