Time, technology and trend has undoubtedly played it's part, but to a large extent, we audiophiles and the outrageously expensive audiophile market place has played a big part in the demise of audiophilia,
I have an adult son and grandson and a teenage granddaughter, who will have 0 interest in, nor see the sense in, my thousands of $$ worth of, wall too wall, audio gear when I am gone.
Jim