Value
The leader only uses the helicopter with the highest value. They choose to fly in only the very best, most valuable helicopter. That's why it's worth way more than the others. Actually, any helicopter they use goes up in value. That's the amazing effect of a good leader.
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あたい
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To further increase the helicopter's value, the leader tied it to a car (か). Wow, now it has the value of a helicopter and a car combined! For a total value of… Well, imagine for yourself what value the car adds.