just a quick update/addition to this thread:
there are rare occasions when an item can be sold for way over its actual value and this typically occurs when a rich buyer desperately wants something you have.
a good example would be when i bought a gold max defense magmas shield req 8 with -2 dmg while enchanted for 345k some months ago. yes, i paid more than 3 times what it's worth because i had the money to blow and i wanted that shield no matter what.
so why am i bringing this up here? well, see that 15^50 req 8 summit axe my warrior is holding in the picture a few posts above? i just sold it for 60 ectos + 50k to someone who really really wanted it. hey, the opportunity presented itself, and how could i break a young boy/girl/man/woman's heart after s/he offered me (supposedly) everything s/he had? sure makes me feel good to make someone happy.
anyway, this doesn't mean the OP is gonna be able to sell his/her axe for the same amount, i highly doubt that. unless of course opportunity comes banging the door down. otherwise, the original pc of 200-300k seems fair.