Yes, but there are also cases where the more expensive headphones are a clear, vast improvement in sound. There is clear, clear improvement, very enjoyable opening up with a sense of zero pressure, sufficient space and exact imaging, but also not any less relaxing to me than the Nighthawk. It's not the sort of thing where you do A/B testing repeatedly to see which is better. You switch from the Nighthawk to the MX4 and say instantly, yes... it's another level on every point. Except the obvious one, comfort, for which the Nighthawk and Nightowl are unmatched.
This is why I keep the Audioquest units, for when I want to have headphones on for hours and hours and still a very good sound that still doesn't disappoint when switching down from the MX4. The Nightowl is that rare headphone that I can put on after the MX4 and not feel disappointed.