Achieving a high score requires focus and effort. There's little reason to aim for a score a lot higher than the current best; and when getting close to the sc

Achieving a high score requires focus and effort. There's little reason to aim for a score a lot higher than the current best; and when getting close to the score you're aiming for, it's easy to get agitated and make a mistake. And if you do beat the high score, you're likely to loosen your attention right after that, and it's even annoying to keep going for much more.