Good points blandry.

I'm also worried about people playing computer games nonstop. I play them myself at times, but since I play a strategy game, I try to tell myself that it's not as bad since it involves some level of thinking.

As for taking things for granted, I believe that's just human nature. Kids easily tire of their toys, we get bored easily doing the same thing. We're always ready to move on the the next thing.

But the best part about this is constant change leads to improvement. Or, change ideally leads to improvement at any rate.

On the other hand again, habit, which -is- doing the same actions over and over has been the source of excellence. From Aristotle to William James, good habits have been recognized as a key to success. But habits are more abstract than repetition. For example, learning something new every day is a habit, but it always involves learning something new.