I finished Diablo III last night and enjoyed the ending. Of course, as soon as I finished it, it suggested I start again in nightmare mode. Not bloody likely. I know of people that play games over and over again to get the platinum trophy or max achievement, but once I know how it ends, I can’t be bothered. I played through parts over Dragon Age Origins several times, because each origin story was unique and great, plus the origin affected later parts of the game.
The only way I’ll revisit Diablo III is playing co-op if any of my friends get the game. But until then, it is shelved.