Cost to Operate: Varies by Build Kit tier |
Expansion: Allows higher tier Build Kits |
Conversion: No. |
Upgrades: None. |
Other Factors: Works instantly. |
Example: Suppose you are lost in the desert and dying of thirst. You come across someone who is selling water, but they want $1000 for a small bottle. The water at that point is so important to you that you would buy it despite the huge price.
But would you pay $1000 for a second bottle? A third? The answer is no because the value comes down as you get more of it. Maybe you'd pay $500 for a second bottle, $100 for a third, $20 for a fourth, et cetera. Eventually you have so much water that you wouldn't really want any more even if it's free. The more you have, the less another unit is worth.
Example: Suppose a 100ft2 farm makes 1000 grain in a day.
You expand it to 200ft2. Now it makes 1997 grain per day. (Second level = 1000 * 99.7%.)
You expand it to 300ft2. Now it makes 2991.009 grain per day. (Third level = 997 * 99.7%.)