Are you/can you sell your account?

As an aside: I feel the opposite of you. I have this weird attachment to my account/character. Too much time and too many memories were created over the years with the character. Strictly from a loss/gain standpoint, I wouldn't sell it solely because the amount you sell it for probably will not equal the value of the time you spent playing the game. Besides that, there's also sentimental reasons like I don't want someone being able to suddenly buy up the achievements of the character that I achieved and I made memories with for a few hundred or thousand bucks.

Completely agree.
There's also the fact that once you sell the account, you can no longer control what happens on it, so someone could buy it up and then use your reputation to pull off massive scams or things of that nature.