In all honesty I would see little difference in price as another group of collectors would snatch up the cues. At worst prices would drop modestly so those collectors could snatch up the majority.
The only way we would see a difference is if they were buying and immediately reselling over and over again. In the first run those cues would not lose value and if they did it would be a very modest loss.
In this thought exercise it's the top 200 collectors who would be selling not buying. So then when you start from the people who might have an interest, those being collector #201 and down who presumably aren't as wealthy as collectors 200 and above then the economic model suggests that the sudden influx of supply depresses prices because consumers of that item have more choice and there is much more competition from sellers to sell rather than competition in buyers to buy.
Another way to look at it is the availability of 10,000 Balabushkas on the market vs. 20. If there are 10,000 then that means that the consumers of them have plenty of suppliers and the suppliers must compete hard for each sale. If however there are only 20 then there are very few suppliers and the customers must compete very hard for each purchase. Scarcity always drives prices higher.
The same thing happens to any commodity which suddenly floods the market. If for example a new gold mine were found and the owners extracted all the gold in one month and dumped it on the market then prices for gold would plummet. This is why the diamond trade is so tightly controlled. There is not a shortage of diamonds, supply is artificially manipulated to keep prices where the cartel wants them. This is also why they work so hard to try and stop the creation of laboratory grown diamonds, because once diamonds can be created in the lab real ones won't be worth much more than playground rocks.
Another thing where a sudden flood of cues would hurt the market is for cue makers as their lists suddenly become less valuable and people give up their spots since they can get instant gratification due to the large numbers of cues from all makers entering the market.
If the top 200 collectors sold off their cues and exited the market then it would leave a hole in the market that wouldn't easily be filled by others. The net value of all those cues would go down from what it was.
That does not mean that if a person buys a Szamboti for $4000 that was previously worth $6000 in the up market, in this flooded market that their $4000 is unsafe. That would depend on how long they planned to hold it and the real number of Szambotis that entered the market after they made their purchase.
If a person bought the 6k Szam for 4k and planned to hold it for a long time then it's pretty likely that their investment is about as safe as T-bills, bonds, CDs and the like at least. If they planned to flip it quickly then they might be hating life if someone dumps their Szam collection on the market at the same time and the price of their 4k purchase drops to 2k in the short term.
Of course you might be right that the sudden influx of cues might cause people to start liquidating other assets to buy them up and that they would cause prices to rise.
Aren't market dynamics fun?
