James,
the case I'm making about ebay is that it's an auction that many people see as the only outlet for record sales. Hence, when something they've seen hyped gets listed, they assume that there's not loads of copies for sale anywhere else. When in reality, there is. I'm a self certified ebay nut, but I know when a record has passed the 'reasonable' selling price. And in any case, the true worth of ebay is finding the stuff no bugger decides to bid on. And really IS worth something.
I don't own the Jacklyn 45, cos there are other records I want, and have wanted, first. But even if I HAD the 45, I've be doing myself an injustice by offering it for £180. I'd be expecting my own greed to push the price of a record I paid substantially less for. Perhaps I don't have business accumen, but I'd rather see people pay fair prices for records over any personal financial agenda. If only to stop it turning into a price warring comedy club.
Soul music is primarily about the universal enjoyment of the lush sounds, but of late,a growing number of people will tell you it's been placed in the hands of the affluent with a view to them becoming self styled vinyl gods. These are the people controlling the prices, not you or I, or rarity or quality. Thankfully, it'll be the likes of ourselves who will eventually win out, cos come 15 years time I reckon there'll be a lot less of us collecting and more records to go around. Perhaps we can use them as ballast in our space craft.
With regards to your allusion to 'silent' collectors, we'd be foolish to refute that these people have always been lurking, even through the 80's & 90's. I'm glad they exist, and suspect these people dig a lot harder behind the scenes of an auction site to secure their records cheaper. Probably because they are not driven by the current dancefloor monster and have their own buying agenda.
Ebay can never really be a 'true market value', since records that go for a ton one day fail to get bid on the next. If anything this is a perfect example of how volatile the market has become, rather than any indicator of true worth.
Anyways.
Yes, that's me. Balding with Jewish ringlets.