Because everybody wants to score higher. We can all argue about how important a higher score really is, but there's no question that it's better to get a high score and I respect the people who can do it. This is probably the most important test we'll ever take - and most of us have taken quite a few big tests over the years. It's perfectly normal to want to try your best. That's really the point of this discussion. Also, this discussion is barely going beyond two standard deviations. This year, the mean is 225 and the SD is 21. Two standard deviations would be 267. 250 is barely one standard deviation above the mean. And it's not a normal distribution, so we can't really estimate accurately.