Should we use games in learning?

link to website
from Albert Ip about games in learning....
"While educators can select games which have attributes positive towards learning, I would still like to ask if "playing game" is the best use of time of the students. For those who are motivated to learn, playing game may be considered a waste of their time. They can engage in much more direct learning activities which are designed to develop the skills they set out to learn.

The question, to me, is not to use game as a substitute of good design of learning activities. We have a lot to learn from the game designer, how games, some very difficult, engage the players. We should learn from game design. We should not use game as a substitute of good engaging learning activities."