Alsace 47°52'46"N 7°24'30"E | Digital cameras go by their résolution: the number of pixels (individual picture elements) that they can store for one picture.
You should find 3.1 Megapixel Cameras in the 20$ range. Don't go below as you will be deceived by the resolution soon. More pixels is better but you have to pay the price. Below, it's more or less the resolution of a cell phone, and details are not visible, but that would be ok for quick snapshots.
JMHO
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