Are expensive studio headphones like the DT 1990 Pro MkII worth it over a $150 pair?

Reviewers describe the DT 1990 Pro MkII as offering tank-like build, top-tier detail and improved (but still energetic) treble — a genuine step up in technicalities and durability. But many of the same sources note diminishing returns versus the HD 650 or HD 560S, and that the higher-tier Beyerdynamics still carry a treble character that not everyone enjoys. It's an endgame splurge, not a necessity.