I'm noticing one particular irony associated with being level 70.
Before I reached 70, I thought that once I did, I wouldn't have anything left to do and it would essentially mean the death of the character; a character which I've been playing for a long time, and have grown to love.
What I'm actually finding however is the opposite; it's easier for me to find goals to work towards as a 70 than it almost ever was before that. I think the reason is because rather than arbitrary quests defined by the game, they're objectives that I'm defining myself; in terms of farming for a particular piece of gear I need and so on. Thus, when I achieve them, they have a lot more significance than just completing a set quest.