Quote Originally Posted by alimdia View Post
If someone undercuts me by 1 gil repeatedly, I lower the price much more since I dont have time to undercut by 1 gil all day. I only change prices a few times a day
This logic is slightly flawed.
The logic of others on this thread that "1g undercutters tick me off and I'll undercut by 1kg to 10kg out of pure spite" is hideously flawed.

All that is happening in these cases is that gil is left on the table, i.e., contributed to the buyer (who might be a flipper if you undercut an item by 10% or more, creating a profit opportunity)