No, it's not just about price. It's about priorties IMHO. As @jijoh123 points out there's lots of other things competing for one's financial attention. Necessities...
Additionally younger listeners have smaller spaces and are more mobile than older generations. Personal music appliances (headphones, digital players) are more and more popular. Smaller homes don't support big floor standers. And there's the fact that younger audiences prefer to enjoy experiences (travel, camping, etc) than to have "stuff". We've had younger dinner guests and they marvel at my modest rig.
Happy listening.