Oh my God... This topic has opened a can of worms my friend!
I'm a HUGE laserdisc whore!!! I have 222 movies and counting including both the Special Edition and the Definitive Collection of Star Wars (9 discs!!!), Sleepy Hollow (the last LD released in the US), both box sets of Terminator 2, Amadeus Pioneer Special Edition (only 10,000 produced) and so many others! My player is a Pioneer CLD-A100. Yes. The LaserActive. I only have one LD game though, Pyramid Patrol. This topic is officially amazing.
BTW, S-Video serves absolutely no purpose with LD. I've tried different TV's both standard and HD and composite looks identical to S-Video, just FYI. And all LD's look terrible on HD TV's. XD
But the audio of laserdisc is actually superior to DVD. Since the disc is freaking 12 inches across the audio doesn't need to be compressed like DVD's. So if you have a DTS LD vs. a DVD you WILL hear a clearer, crisper difference. DTS LD's go for about $40 a piece for this reason.
Anyway, glad to meet another LD enthusiast!!! You should check out the LDDB. Laserdisc database. It's just like VGMDB but LD's and HD-DVD's and other dead formats. You can set up a collection page there.