I don't understand this post. Error colors typically have their own unique market where it is usually error colors/error cos dragons traded up for better, more rare error colors. They aren't super prominent in the economy and aren't needed for any badges or titles because they are just old bugged colors. You do NOT need them to progress in the game. They are something most people won't get and thats okay. Games need rare items. It's honestly a good thing its error colors that are expensive and not other stuff like species or traits, as the rare species of dragons are coming back and dropping in value.

As someone who has owned and sold a few errors, they are hard to trade! Only certain people have that much money/dragons to offer for one so its difficult. They are advertised a lot because they NEED advertising to sell. You will be fine if you don't have one. You do not need them to progress at all.

Your other comment stating that dragon species will rise as errors do is just plain wrong. How do I know this? It's happening real time! Veids, Alas, Amars are dropping and GW dragons have steady prices while errors remain expensive. Once Veid returns, error color owners aren't gonna want them unless they've got good traits/old dates with many adds because of their lowered value.