@Invenio78, no harm done, no worries. I guess there is some misunderstanding here though. I've been here on Audiogon for well over 10 years, I NEVER considered Audiogon an "auction house". I have bought and sold many pieces of equipment over the years here, but never once did I put a piece for sale on auction. I've always placed ads. I found that I could always sell anything if I priced it aggressively enough.
Over the years though, I've found that patience is a virtue when buying AND selling. I may still 'jump' on an item if the price is right, but that is very rare (thankfully). I do realize that if I was desperate I could sell everything I have starting an auction at $1. However, that could also be a big mistake. I've seen quite a few people regret that decision over the years. Because this hobby is about being in the right place at the right time. Starting an auction at $1, you are "forcing" the time issue.
Many times I've turned down the early lower offers and found someone that really wants what I have weeks or even months later. Sure, it doesn't always work, occasionally I overestimate the price of something and wind up selling it months later at a steep discount, but this is very rare. I've also sold stuff that was snapped up within 30 minutes and wondered if I should have priced it higher. That's part of the "game".
The bottom line is, as you say "the market determines the value of an item". The only audio gear that I've seen for 80% off at 10 years old though is either digital gear or phono cartridges. I don't think you can compare the gear here to televisions, because for the most part, the stuff here has a longer lifespan. My current amp turns 20 years old this year, I've never had a 20 year old TV. Vintage gear is popular in this hobby, I can't say the same for television. :-)