I'm not suggesting a need to pander, and certainly not suggesting a desire to court the LCD. What I'm suggesting is that to get more people to love quality audio reproduction is going to take a different approach than that which is currently offered by those who love it the most. I think a vast number of people, plopped down in front of an excellent system, can hear and, at least intellectually, appreciate the quality of the sound reproduction. But the time and $$ required to acquire it for themselves, and the education that leads to a set of reasoning that would justify such a purchase in their mind are all obstacles. Just take time for instance - very few people have the patience to sit and listen to even a couple of songs if that's all they're doing. I'm speaking from the experience of showing off my system to friends - no later than 1/2 way through the second song, they're talking, standing up, moving around.
So, if the question of "Why don't more people love audio" is meant to mean, "Why don't more people want good-quality, audio reproduction to pursue as a goal in and of itself, along with listening as a pursuit of it's own", then I think the answers about short attention span, changing culture, etc. work pretty well. But if the question is actually intended to say, "Why are people satisfied with Bose when they could have so much better for the same price or just a reasonable amount more," then I think it's because the obstacles of places to experience it and educate oneself, the lack of high-end innovation to accomodate this market segments "needs" (ie, not having the right products), and the distance the current high-end holds itself from this potential market are the reasons.