I sort of assume my toon doesn't feel pain.  So I guess I imagine it would be a deprivation of the experience of life, but with immortality (so long as the game continued).  But what a limited immortality.  How does one create art in wow?  Sorry you can only make another purple shirt.  I imagine many chat threads would stray to how cool the real world used to be, the foods, the people, sex, the freedom, just the feeling of wind on a nice day.

Well if I were to live in wow, I would hope new worlds would continually open up, and graphics be improved upon, and new emotes added.  And the keepers of that strange realm continue to maintain the servers, and pass more powers of creation to the toons.

No doubt about it, stay in the real world