Just saw today that the Amtrak ticket office at Back Bay Station in Boston is closing, and the ticket office and station building is closing at Westerly, RI (just in time for the arrival of colder weather), effective October 1. Earlier this year Amtrak ticket office and station buildings at Berlin and Meriden CT closed, as did the Worcester MA ticket office. Most people these days can get their tickets on line or make reservations over the phone - many could foresee the e-ticket being the end of many ticket office jobs. For those who wish to deal with human ticket agents or pay cash, go to a staffed station while you can! You are not Amtrak's target market and your business just isn't that important to them.
Unfortunate that they're closing the ticket office in Westerly, it was a very nice small town station and Amtrak carries a lot of passengers for the small number of regional trains that stop there. I hope they keep the waiting room open.
As far as Back Bay goes, I can't say I'm surprised. The station has gone right downhill and I usually make a concerted effort to board my train from South Station.