Sorry if this appears to be an aimless post with zero point, but I thought I'd just give my long term impressions of various headphones that I've used throughout the many years I've been into audio listening and production. All of them are around the £50-200 range so nothing here is earth shattering in price, and the main reason why I've yet to really spend a lot on "the one" for me is simply because I just don't really know exactly what I want yet. I've switched between liking headphones and wanting to get rid of them in a space of a day because a quirk or "issue" props up during work or listening.
Sony MDR-10RC
One of the first headphones I used a lot was actually the Sony MDR-10RC