A lot of people hit it right on the nose.

Affluence, Luxury, Convenience, Preference~

The motivations for any hobby differ from person to person.
Audio is a predominantly subjectively driven pursuit with many variable opinions on qualifiers for quality, tonality, impressions, and A E S T E T I C appriciation.

The end result is, people adapt their budget, space, and interest into exploring the rabbit hole.

One person's opinion : Speakers aren't terribly sexy. I can't take them with me, they depend heavily on the room for performance. They are bothersome to the people I share my home with. I seldom have the opportunity to sit and enjoy them, and I'm not particularly fond of what they do to music.

It feels like I never have absolute control of sound, and that I'm suck on one piece of equipment as opposed to having fun exploring different ideas and profiles.

I've moved even from Headphones to IEMs & DAPS.
Having immediate, enduring, long lasting access to music when I NEED it most has been far more enriching to my life than the demo room. I've had speakers, but didn't fall in love with music until I had FIDELITY in the office.