Gymnastics scrapped its perfect-10 high score in 2006, replacing it with one that was supposed to remove some human error by instituting one score for the difficulty achieving certain moves, alongside a second, more subjective score for execution.

WSJ: London 2012: Chinese Men Take Gymnastics Gold

But history shows a pattern: when attractions prove too expensive to maintain, score low on guest approval, lose sponsorship or have difficulty churning through high numbers of visitors, they are likely to meet the wrecking ball.

BBC: Walt Disney World's most endangered attractions

If your credit score is below 620, you will be considered subprime and will have difficulty getting a loan at all, let alone one with favorable terms.

FORBES: 5 Steps To Scoring A Mortgage