My Westone 1s, my first IEM purchase worth while, they say that this dude likes it balanced, controlled and collected and shoot dang comfort is a must have. This is the gentler side of me that likes to run trails to Jimi Hendrix, do boring yard work rocking to Led Zeppelin and the Chili Peppers, and fall asleep/wake up listening to a playlist. In essence the 1s tell me that a headphone needs to have multiple uses for multiple occasions and I am a guy that looks for versatility and IEMs that actually fit!!!
My M80s tell me that I am a sucker for great case lol and super durable portable gear, not only that but great mids complemented by bass. These bad boys make me feel like a million bucks and really made me learn great things get greater with time. When I wear my M80s it shows my respect for all the R&D and that I like a headphone that looks good and sounds even better 
And finally to show I am a closet basshead the XB700 and XB500. Value, value and more value, no where will you find gobbs of bass for as cheap as the Sonys MSRP. The XB500 got me hooked and then they were sold in order to make room for my XB700s that I ordered, it shows that when I am impressed by a headphone Ill probably by other headphones in the same line, and I like bass and lots of it!
But it shows that if a headphone is totally ridiculous it will stay an at home only headphone.
So I think my headphones show of all things my practicality, if I can dig it and it doesn't dig into my wallet too badly ill go for it
If only I were to own a pair of Heir Audio IEMs, that would show I'm one bad mofo haha 