I''m still surprised US is holding on to 18 gates at BOS, given that total daily departures are down to roughly 100 and the fact that DL operates a few more daily departures from BOS with 13 or 14 gates. Then again, Delta''s operations at Terminal C can be a royal cluster%$&* with several 757''s, 767''s and an AF A340 all leaving within an hour of each other...
I suppose it means that US either intends to expand service from BOS again (so it made sense to keep all their leases) or the overall cost of the leases wasn''t terribly high. If Austin wanted to p.o. Dr. Evil, US could sublet a few of those gates to jetBlue, but that wouldn''t be real good for US''s traffic either.