Final answer:
Presidential $1 Coins are usually worth their face value, $1. However, the value can increase if they are not in circulation or are commemorative, due to collectors' interest. It's critical, as cases like Zimbabwe's hyperinflation demonstrate, to note that the value of currency is not solely determined by the numbers written on it.
Step-by-step explanation:
The value of one dollar coins with presidents on them, often referred to as Presidential $1 Coins, usually equals face value, meaning they're worth exactly one dollar. This assumes that they're in regular circulation, used condition. However, uncirculated or commemorative coins may be worth more to certain collectors due to their condition, rarity, or sentimental value, similar to other forms of currency around the world. To better understand the value of currency, one can consider how Zimbabwe used to print bills as large as $100,000,000,000,000, yet these were also unfortunately almost worthless due to runaway inflation and the relative strength of other currencies such as the US dollar.
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