Riddle me this

I am not sure I quite understand the difference between the perceived value of a card is, and what you can actually buy it for.

My case in point: Mishra's Factory Winter.

Here are the values listed from a couple different sources:

mtgstocks: $399.50
mtggoldfish: $377.50
tcgplayer: $162.22  (market price)
Listed Median TCGplayer: $399.50


What I can tell, is, if you have a couple copies of a card, you can really throw the perceived value off by doing the following:

- listing several copies of hard to get card at really high end of the spectrum (example- there is one copy listed for $599.00, out of a possible 13 copies)

- buy up the much lower priced cards

- watch as the perceived values shoot up


Its a crappy way of doing it, but buyouts happen, prices go up, and everyone who has a copy feels pretty good. Those who "need" a copy are SOL.