The requirements will be a rocket ship to Mars, while all they need is a bus to the picknick. You argue that they really only need a bus, but then they go with

The requirements will be a rocket ship to Mars, while all they need is a bus to the picknick. You argue that they really only need a bus, but then they go with a competitor, that delivers a rocket that almost makes it to the stratosphere. Then they take taxis to the picknick. So you promise the Mars mission, but with the estimate of the bus trip.