Kind of chuckling that this thread is 15 years old now.
Compared to 2008, I'd say that decent sound has become MUCH more affordable, accessible, and compact. I was putting the full-size Amazon Echo through its paces the other day and was surprised at the range of sound it can put out, and that's ignoring its size. Is it audiophile quality? No. BUT, for $60 on sale, it's a heck of a deal. Of course there's the Devialet Phantom speakers which are ugly as sin, but through all sorts of electronic wizardry are able to put out a full-range powerful sound at a pretty decent price these days.
Even some portable Bluetooth speakers are quite good. I have a pair of the Anker Soundcore Motion+ speakers and they're quite respectable for the size and price. I have a buddy who spent $20k on a home theater setup with in-wall and in-ceiling speakers. For kicks, we set up the Motion+ speakers below the in-wall mains. I wasn't expecting much, but they really held their own. Lower and better bass response and a more detailed midrange from the home theater setup. Sure, there was a difference, but it wasn't as much of one as we were all expecting. I kind of felt bad for him after that.
I've had the luxury of being in the audiophile, broadcast, and live audio world. As such, my setups have been a mix of equipment over the years. My main listening room is (still) down due to Hurricane Ian. BUT, back in the day it wasn't uncommon to have friends come over and just listen to music. They weren't audiophiles per-say, but clearly enjoyed listening to music in that much detail. I also was the engineer at a concert venue and used the venue as my personal boom-box when it wasn't being used. Being able to go into the venue, fire up the sound system, and play back recordings we made off the console's direct outs was good fun. My own personal concert. These days if I want loud music, I drag PA speakers out to the airport and let 'er rip. No one cares out there compared to the noise of a bizjet.
At one time I had superior hearing. I could clearly hear palmetto bugs (roaches) walking in a quiet room. At a few places we'd use 25kHz-35kHz cue tones for me. I'd hear it but the broadcast chain / speaker processing gear would filter it out. Then I made the mistake of taking vancomycin and lost half of my hearing in one ear, about 25% loss in the other, along with a substantial reduction of highs and lows. I also developed nasty tinnitus. Even driving on the highway with the window open, the tinnitus is still louder. The hearing loss happened over the period of one day. It's been a decade now and it still hasn't returned.