My post wasn't about selling ALL domains for BIG money, it was about selling shite for BIG money. Some people put silly prices on mediocre names. Your use of the art world is actually a great analogy because it too is pretty seedy and cheap below its glamorous high gloss over-priced exterior.
Surely you mean "TRYING to sell shite for BIG money"? After all, the value of a specific domain name is set by the market (= "how much is somebody willing to pay for it?") so if somebody was actually willing to buy what you are calling junk at big money prices, then it wasn't junk.
Again, it's like art in that respect. You can go to eBay any day of the week and see rubbish artists trying to sell their daubs for millions. But are any of those artists actually succeeding in SELLING anything? No.
The very act of receiving an offer at a given price-point for a domain name cements its value at that moment in time, at least as far as a "minimum value" floor price is concerned. It may only have that degree of value to one person in the whole world - beauty is in the eye of the beholder - but it is still "worth" that much, at least until/if the seller refuses the offer and ends up never seeing a similar offer again.
There is clearly healthy business to be done picking up OK domains at regfee and flipping them for a few hundred pounds. Nice little money-spinner, if the volume is there and the domains are good enough to "sell themselves" (not much overhead built in for sales). Waiting for deep-pocketed buyers is also a good business model, so long as
at least some of the domains in a portfolio attract such buyers.
At the end of the day, you have to ask yourself one thing: are domains a business or a hobby for me?
If your answer is "they are a business" then it's best to proceed on that basis - successful businesses don't in general make irrational pricing decisions because a particular potential buyer doesn't understand the real value of what they are offering. No, they wait until the next buyer comes along who actually understands that value - or they do a better job explaining it. At the end of the day, a potential buyer not willing to pay the going rate for something was never really a "potential" buyer in the first place, but only a time-wasting tire-kicker.
If on the other hand domains are a hobby for you, that's great. You can relax, have fun and earn some cash at the same time - maybe even some really nice cash - without ever having to worry too much about the grubby capitalist aspects of the thing!