Originally Posted by
Vaer
That's sorta right. If someone places an item for 1 gil and price history says it's worth 500k, you would get it for 1 gil if you put that in. The reason people would undercut is to sell faster. When someone purchases an item the lowest price item always sells first. For example, I put an item for 20k that is worth 50k. Buyer pays 50k for it, mine sells before someone who put it for 21k, but I still get the 50k.
Usually people price things like 1,999 (sells before 2,000) or 1,001 (block someone from buying it for 1k so they maybe try 2000 to buy it) to one up people as people usually purchase things with last digits in 0's.
You see the issue here though. While most people are too lazy to try every single combination (such as 1,100, 1,111, 1,200, 1,202 etc), when someone is patient enough to do it the price on something can drop a lot rather quickly, especially if it is a hot item/flooded market.