to me, random value means about 8-9 cents. its pretty much expected to be the minimum value of card prices. Random is just a nice and misleading way of saying 'im selling my cheapest shit'.
also when you sell a card for 8 cents, you dont GET 8 cents, valve takes a valve tax on your sale. if you used a .08 cent sale as an example, you would get about .06 from the sale... .06x55=3.3
also people are idiots, they think because cards are free, their value is irrelivant and will often overpay... ie: people who ask for an outrageous amount of cards for 1 tf2 key... all they see is the KEY! (bright! shiny! ooooo); they dont think about the combined sale value of their individual cheap cards.
So the prices on market are tax-included. OK, thanks for your detailed answer, sir! I'll trade my cards carefully.
Trading cards are obviously medium of trading. But how the "random" cards price suppose to be? There are cheap cards like L4D2, 1 card just for around 0.080.1 USD; and for Eryi's Action, There is a card named Chikobo worths about 0.30.5 USD! I don't really know what value of someone's "random" card is. By the way, I saw a topic that featured Super Sanctum TD for 55 random cards. If I use the minimum of a card's value 0.08 to calculate, it will be around 4.4 USD, even more expensive than the regular price 3.99 USD. That doesn't make any sense.