I agree with both sides to a certain extent. I know I myself am not as efficient as I could be while playing runescape. I was reading a rate this today, and someone went and gave someone a 1/10 I think it was and said that was because of his "efficiency." Now, I understand that person has the right to say that, as that is how they view the person who is looking to be rated. However I do not agree with it. I dont really care much about efficency and what not, I play for pure enjoyment, weather that means spending my money on something useless or training a skill in one of the worst ways possible. In my books, If im using my time for enjoyment, then I am using my time efficiently :P TL;DR: Efficiency depends on who is using the term, I myself think anytime im having fun im being efficient.