Theory?
I am a DVC member and regularly visit that section of the DIS boards.
About a month and a half ago, a DIS and DVC member reported back on her recent experience checking in at the Boardwalk after arriving via a cab about 10am.
Was told her room was not ready, but that it would be by early afternoon. Fine; per policy, rooms aren't guaranteeed until 4pm, but because her daughter wasn't feeling well, they decided to wait in the lobby.
After a short time, shel started noticing something.
Busload after busload of ME guests were arriving, checking in, getting key cards and heading toward the elevators. Early afternoon came and went, and she kept checking with the desk but was continually told "no, your room is not ready yet."
By 3pm, she'd had enough and demanded to talk to a manager.
She really pushed the manager, and he ended up telling Carol that "the Boardwalk is "testing" a new policy whereby we try to insure that a room is readyu for all guests arriving via ME. Specifically, when their flight lands, we are contacted by ME so we can assign them a room that will be ready upon their arrival at the resort."
In other words, the DIS member asked, even if someone checks in early like me, if they don't arrive via ME, those who do -- even if they arrive after me -- are going to get the first rooms that are available.
The manager finally admitted that this is indeed the policy.