Low-cost - FlyRails

Walk to stations. No additional transportation required.
Inexpensive infrastructure, construction and land use.
Existing structures not affected.
Shortest route to destination is used.
Low maintenance cost.

Expensive - Monorails

Costly concrete, vehicles, rails, land and construction.
Existing homes and businesses must be removed.
Long construction time.
Expensive construction equipment and skilled labor.

Expensive - Ground

Lots of expensive asphalt and concrete.
Roads and parking use 1/3 of expensive city real-estate.
Expensive soil and drainage preparation.
High maintenance costs.
Expensive construction and labor.
Expensive vehicles and fuel.