Quote Originally Posted by Vahlnir View Post
But yet people will still undercut so other people will buy from them first. This doesn't solve that issue in the slightest.
Then discount the %tax based on the number of listings of the item already registered at that price?

So, let's say you want to sell an item for 100,000 gil when there's nothing up there. You'd get the normal fee of 5%, 5,000 of the 100,000 gil.

So, another guy comes along and tries to sell the same item at a reasonable price that will sell quickly. 100,000 is quite reasonable, but his item will appear first if he undercuts. So, he's got two options:
  1. Sell the item for 99,999 and pay 5% of that price as new registry (basically 5000), or
  2. Sell the item for 100,000, be placed second in the registry, and pay just 4.5% of that registry fee (just 4000), for 501 more gil in the end.
Next person has the option of 5% of a new price, or matching an old price point for .5n% off the fee, etc., etc.

It makes the market less fluid, but does compellingly disadvantage undercutting.