I get what you're saying but I think this way of thinking is part of the reason why domainers as a whole only have a 2% sell thru rate on their domains. Many are ignoring basic market principles and are adopting more of a lottery mentality. The market not the domainer ultimately determines what a domain is worth. Many domainers would rather hold a domain for decades because they "feel" it's worth more despite what the market is telling them. As a result, 98% of domains that most domainers own will never sell and the only winner in that scenario are the registrars who are getting renewal fees.
the 98%, to 2%sell thru ratio, even if true, doesn't mean that domainer isn't making a profit
because it's possible that two names in a portfolio of 100, could actually pay for the whole and have some left over.
it also doesn't mean that a domainer didn't have opportunity to sell more names, they just chose not to sell for what was offered.
or, they may have set a limit, on how many names they want to sell within a given period.
as for the "market", what is the market, and if there is one, which market?
and how does a market have control of the "worth" or value of a domain, if/when it's not sold within that market?
also, i've held names for a decade, plus a few years, and when i sold them years later, the profit margin was 1000x's more than if i would have sold years earlier
what one "feels" about their names, maybe true and valid, despite what varying market blah, says
especially if the market is trying to buy that keyword now, rather than later.
imo....