The problem is there is no regulations to whats a fair and reasonable price, like the real world. Real world markets are not a gigantic free for all like some think, its heavily regulated by government entities, with rules and stipulation, contracts, fair market values, anyone who knows anything about the housing market or stocks will know what I'm talking about. If someone "undercut" in the housing market, it would be ignored by an appraiser because its a motivated sale that doesn't reflect what a fair market value is - they are suppose to do this to keep the integrity of the housing market.

That doesn't happen in this game - there is no real market integrity, anyone can sell anything at any price. People can sell SavageAim4 for 1 gil and sell 100 of them at 1 gil if they wanted to crash the market. Realistically SE should add in minimum listing price requirements for items we know are valuable, ie can't list SavageAim4 for less then 80k, or something to that effect.