So there you are, working hard to level up as fast as possible to try compete with friends, enemies and neutrals on the server. When all of a sudden, you see a strange monster that looks like the rest, but only this one has its level written beside its name. It's stronger than the rest. Maybe you'll get good rewards for killing it.
It is indeed stronger than its fellow monsters. You may have heard of these "Bosses" and their rewards, so let the battle commence. It deals heavy damage and takes a while to bring down, but finally you've done it, and got the rewards. So now it's off back to the market to try to sell your new accumulated wealth.

The only problem is, you are not the only one. People dedicate their whole time in Eudemons Online only looking for these bosses and know of all their locations. So there is many others looking to sell their precious gems, some so desperate that they sell their items for a ridiculously low amount so that they can sell quick and get back out to look for more bosses. Now what we see in market is a disgrace, the prices have plummeted from a respectable 80-90eps for a redstone maybe 8 months ago, to now only costing 40eps.
So now when you find a good boss that drops a few reds and a few other gems, you're not looking at a couple of hundred EPs. You're now lucky to get around 100eps. This can be good for the newcomers as they won't have to pay as much for their gears to get to a good standard, but is tormenting to long time existing players. Not only are their gears just normal, but to keep upgrading your pets at high stars becomes a lot more difficult.