2) Boston is unique. Filming in the Midwest, you can pretty much be in any city and aside from known landmarks, it can look like you are anywhere. Places like Boston, New York or Paris are so distinctive that the only way to get that affect is to actually be there. Try filming a Boston scene in Los Angeles and you will never be able to convince your audience that you are in Boston.
3) Boston gets snow. Sometimes a movie requires a winter backdrop and lets face it, Hollywood will never deliver real snow. Not ever.
4) Like many other cities, Boston (and the Commonwealth of Massachusetts) offer tax breaks and other financial incentives for shooting movies in Boston. True Boston is not unique, but it also isn't behind the pack in this regard.
5) Filming in Boston promotes the city. Films and TV shows which highlight the beauty of the city and its neighborhoods make watchers want to visit. We must not underestimate the long term benefit of promoting the city. Many people when planning vacations, think about places that they have seen or heard about on TV or in the movies. How many people say that they have always wanted to visit KANSAS CITY or TALLAHASSEE or BIRMINGHAM? Places like Seattle, Boston, New York, Chicago, San Francisco, Miami and LA create an image that makes people want to visit someday.
Some recent movies and TV shows which were filmed at least partly in and around Boston include: