I have about 500 LDs and will never ever trade them for their DVD equivalents - if they ever come out! A little bit like obscure LPs that will obviously never resurface on CD. My friends who have extensive DVD collections litterally drool when in front of my collection. I'm in Europe and buying LDs then meant getting grey market imports at nearly the double of the US
list price!
Just for the fun of it I recently bought the first 2 gen' of players (Magnavox/Philips VH8005/VLP700, 1978!) and the VLP720 successor from 1981 - neither of them plays anymore (empty gas tubes) but the sheer size and weight of these beasts is quite fascinating. I love big formats and objects that aren't afraid of their own presence

And the large sleeves - CDs and DVDs really look like crappy Minidiscs in comparison.
As for quality, most of the transfers weren't bad but a little soft ; I've never experienced laser-rot, even from the early 1980 discs I have found. A few discs I have put most DVDs to shame but, granted, those really weren't the majority. DVD is too digital and aseptized for me but it is obvioulsy a better format as long as you don't try to expand the very lossy MPEG image on an oversized screen. DVD is always pure video, good LDs are film on video - different viewing experience.
eBay still has interesting titles at times (a few years back it was madness, I saw a couple of boxed sets I own tickle the grand mark!)
The best shop around is
www.bigemma.com. The only problem is maintenance of the players (200 grams spinning at 1800rpm in there!) but there's still plenty of them out there.
I should add a section devoted to Laserdisc on my website soon (
www.thevintageknob.org) - it's not audio but I love that format too much
sorry, I've been lengthy again
axel