-80s come with a port service door for access for catering trucks, so as not to interfere with baggage handling. But, because most airlines have used the 2-3 configuration, two narrow galleys have to be installed, especially if planes have on-board meal service, or the carrier likes to double cater a flight for fast turnarounds.
Having sat in the last row of an AA MD
-80, there is some moving between the galleys, which appeared to be a major annoyance for the F/As.
, putting the seats in a 3-2 configuration means having a one wider galley, about the same width as the rear galley on a 727-200s. Besides having a galley that has a similar layout to other aircraft types, it also allows DL
to put a few extra seats in the cabin.