At a town hall meeting in October, the Delaware Valley Regional Planning Commission showed that a toll for train plan would continuously need to be subsidized and not be able to pay for itself. Contrast this with monorails to Seattle and Japan, which have turned a profit for decades.
Of course we shall not consider the fact that regular rail commuter service in Tokyo has also shown profits for many many years. In both cases part of their income comes from real estate adjacent to the rail RoW.
One thing that we seem to specialize on is making bogus arguments based on selective presentation of facts.
We will not worry about the fact that a completely different mode will require completely new maintenance facilities with completely different set of inventory and completely different set of staff with zero cross usability, and hence will increase overall cost beyond reason. And there is no guarantee that it will pay for itself based on any fare structure that anyone will be able to afford.
Sigh... I am sure another set of consultants will get their kids through colleges on the back of this and the public will of course finally get nothing.