It took long enough, but I am finally a convert. Almost.
I'd been an ardent proponent of in-ear passive headphones. Superior noise suppression than battery-powered active units in a miniature package with better sound fidelity.
But since I've long dropped carrying standalone iPod in favor of playing music through phones, that last argument has lost its legs. And wireless headphones offsets the inconvenience of wired in-ear units.
The other point being that older noise cancelling headphones weren't effective at all. Until I tried the Sony WH1000XM2 in the stores today. It's almost black magic what they did - the low-frequency cancellation is a given, but the job it did taking down normal human conversation to a whisper is amazing. Tried it against the Bose units and that's where the biggest differences stood.
The WH1000XM3 is supposed to be even improved on it. My unit is still in transit somewhere, but if audio playback is balanced and decent then I'll drink the whole jug of koolaid