Again Matthew, Congestion Pricing is not "something too-sensible-to-happen". If we do tolling, it is to cover the the cost of having the infrastructure, the cost to service the users. We should not use pricing to keep people from using it. Money does not just represent how strongly a user wants to use a service - thus pricing by congestion will just filter out the unnecessary usage, it will filter out that some people will be weighting against how much money they have to spend.
The ones with the most money will enjoy less traffic and would not be bothered weighting it against if the trip is really necessary. The ones with less with be calculating both the options to making the trip and resources. Again, that idea you push is not win-win (I recall that was part of your argument before) and not "something-too-sensible", it is not an idea is so plain obvious that it needs no argument.
This isn't a toll road in the middle of Western Mass we are talking about - There are several other transit options in the area for alternate usage that we should be driving people to use. How can we encourage people to take the T instead of driving when the toll is $1 and a T fare is $2? First, we need to be able to fund our infrastructure. After that, funds raised can go directly to public transit improvements. Its a positive feedback loop that drops the need for expensive highways in the future.