Originally Posted by timstravel
Depending on where you're staying and when you're arriving, I'd suggest considering taking a taxi or public transport to a location outside the city of Boston (for example, one in Cambridge) and renting a car from a "neighborhood" office. Often the savings in taxes and fees alone will pay for the ride.
In particular, if you are staying over the weekend I'd check Enterprise again - their local offices usually have very good weekend rates and they might even pick you up from the airport.
Thanks. Already gave consideration to these possibilities, in particular renting from other than the airport. It is a problem that non-airport Enterprise locations are closed altogether on weekends or open only til 12 noon on Saturdays. And still remarkably expensive at non-airport locations. (Why is BOS so expensive relative to elsewhere. And the taxes and fees are truly phenomenal, coming to perhaps 2/3 of the underlying rental charge.)
Was hoping for some "travel bidding" suggestions. Is it worth a try, or little likelihood of a substantial savings on a 5 or 6-day rental, and possibility of being burned?