Let’s say you are a real estate developer looking to build a project or someone looking to buy a house with the choice of locating on one of two islands. These islands are identical in every way imaginable, they are both the same size, same soil, same distance from the urban core, and both are currently served by a their own car ferry.
The City decides to build a new steel bridge to one of the islands. The same day, the City decides to build a bridge made out of rubber pontoon boats to the other island, thinking if the rubber pontoon boat bridge is successful, they will consider building a steel bridge to the island some day, but if no one uses it, they will simply remove the bridge.
The steel bridge costs more, but will last for 60 years and it can carry more traffic and provides a much smoother ride than the pontoon bridge.
The pontoon bridge is cheaper and can be built faster, but the pontoons require higher annual maintenance costs and have to be replaced entirely every decade or so.