User blog:GreatLogos/Econ Notes (12-11-2013)

Rarity is a very important determining factor; not nominal rarity that LOC assigns to cards, but real rarity - relative difficulty of obtaining a card.
 * Card prices increase over time as cards become extinct.
 * Card prices are infinitely elastic as time approaches infinity. -> Practically speaking, this means card prices will fluctuate as time passes. This can be used to great advantage.
 * It is usually best to buy when the market has imperfect information on a certain card.
 * For certain cards, it is very easy to sell at high prices.
 * One-day rares go for ~50 or so.
 * Colosseo/one-day ultras go for around the same price as an Isis.

Small stat/skill changes can reflect very large price changes. Most cards are thus extremely cross-product elastic.