I played World of Warcraft since release date, I had a 60 paladin, which I sold on ebay for 600$, then I focused on my priest, since BC I played as a shadow priest, I ended up selling the character for 1000$ on ebay, fully cleared Hyjal/Black Temple, use to raid for about 5-6 hours a night, great game, but you will lose your life if you go too deep into raiding.
At least I made 1600$ off my 2 characters when I sold them on ebay.
My paladin was Ahn'qiraj geared when I sold her.
My Priest was Hyjal/Black Temple geared when I sold him.
The server I had my characters where Kel'Thuzad US PVP Alliance.
I miss World of Warcraft, but at one point you have to realize it is destroying your social life, and selling my characters was the best thing ever.
Edited: I forgot to mention Kel'Thuzad is one of the original release date server too

old ass server, always queues which it sucks. I remember back in the BWL/AQ20/AQ40 days there use to be a 600 people queues.