BRT is a bait and switch. It promises rapid transit benefits at bus prices, but at best you spend just as much as light rail to get a system permanently hobbled by bus shortcomings, or you get "BRT creep" and nothing but a different paint job on some bendy buses.

It's a great solution in countries with low labor and land costs where all rail infra would be imported. But it's never lived up to promises in a wealthy nation. We already have the Boulevard Direct bus, its better than before, but it's not enough to transform the Northeast like a subway would.