Granted it is easy at least comparatively to find pleasure in error when there's nothing at stake. But that can't be the whole story since all of us have been known to throw tantrums over totally trivial mistakes. What makes illusions different is that for the most part we enter in them by consent. We might not know exactly how we are going to err but we know that the error is coming and we say yes to the experience anyways.
In a sense much the same thing could be said of life in general. We can't know where your next error lurks or what form it will take but we can be very sure that it is waiting for us. With illusions we look forward to this encounter since whatever minor price we paid in pride is handily outweighed by curiosity at first and by pleasure afterward. The same will not always true when we venture past these simple perceptual failures to more complex and consequential mistakes But nor is willing the embrace of error always beyond us. In fact this might be the most important thing that illusions can teach us: that is is possible at least some of the time to find in being wrong a deeper satisfaction then we would have found being right.
