A generic setting makes the user not trade for the favorited items if the price is more than x emeralds.

In my case, I trade for diamond armor from armorers and have all diamond armor trades favorited, and I would only want to trade if the price is 1 emerald. Sometimes after trading a lot, the price increase on 1 or 2 items. With this feature, you could still trade favorites, but it skips the trades which are set to cost more than the setting.