It's your money. I cannot imagine any reason to spend $350 on headphones, no matter how good they are.
I just believe there is a physical component to listening to music. at a concert, you are surrounded by music - you feel the music as much as hear it. that is how I like to experience music - either at home through a good stereo system, or in the car with the stereo cranked up. FWIW, my last vehicle was a used car - spent about $7,000 on the car and then dropped another $1,000 on a sound system. gotta have tunes. at home I have a 5.1 surround system for movies that I can play CD's through, or listen to music through the computer (Grateful Dead concerts from YouTube..)
the only time I listen to headphones is when I'm riding my exercise bike or walking, when I listen to podcasts on my blue-tooth bone-conduction headset.
Now, if you have kids or can't turn the volume up for other reasons, then headphones might be necessary. I'm single - I don't have to make those choices. But - I used to live in a duplex - the downstairs neighbors complained about my music being too loud. Instead of turning down the music, I bought a house to get away from the neighbors......