You don't say what server or faction, so I bid 1.5 btc.

Seriously I have a Wow account with three 85s, not as well rounded as you, but the main one (priest) has almost 10k achieve pts and all the amenities.  Also an 85 pally and dk. And lower level chars. About 48-52k gold on all characters. Server Mal'ganis, all chars are horde except the 85 pally which is alliance.  Also a level 12 guild with 6 bank tabs (enough cash to buy the 7th if you want), etc etc.

I would love to get 20 btc for it, but I'm realistic. The days of mmorpg accounts going for 500 bucks or more are gone I think. So when you say you want it to go cheap, but then say stuff like "easily worth $600!" well I dunno if you've gotten offers outside this forum but I'm just explaining why I think I haven't seen any here.

Plus you're very unlikely to get offers without saying what realm you're on cuz some people will pay for server transfers and others won't, and it depends on how many chars, etc etc...