Not twice. There is
:
(1) the initial investment ... < plus > ...
(2) the cost of the investment over time
(2a) if borrowed, you pay interest until the loan is paid back
(2b) if you used cash, you gave up the money from that investment forever
In the case of the $500 million spent to extend the line to downtown Santa Fe,
the State of New Mexico is, in effect, paying interest on $500 in bonds that they
would not be paying on right now had they not used that cash to build out the line.
I don't know what rate a newly issued NM bond goes for, but assume
it is 3.5% then the SF extension costs about $18 million every year.
That is $18 million even if the Railrunner was to be shut down. (*)
There is
always interest cost associated with cash.
Always.
Even if you buy a car or solar panels for cash, you pay interest by
not getting the money from that cash over time.
.. I'm using the term "interest" loosely here since new money today .....
.. effectively does not earn interest, but it could be earning dividends ..
.. or invested for a capital gain or otherwise invested somewhere ........
It's easier than writing "
opportunity cost" and is more easily understood.
Whether it was worth it to build out the line to downtown Santa Fe is up for debate, but the cost of it is not.
Whether it is worth it to extend the line to El Paso is also up for
debate, but it
will have an associate opportunity cost of
not
having that money available for something else.
Earlier in this thread, it was stated that operating costs are $24 million/year.
Therefore, the cost of having that train is $42 million/year.
- - - - - - - - - - - - - - - - - - - -
(*) Of course I can always introduce another accounting term - "
relevant cost."
Since the $500 million is gone forever, the associated $18 million in interest is not a "
relevant cost" any more. It's still being paid, but not "
relevant" to any decision to shut down the line.