Everyone don't give up on finding a room. I have been to NDK in the past and seen people get a room saturday evening. People sometimes cancel at the last minute or roomates can't show up for some reason or another. So don't give up hope. Just show up and more than likely you will get lucky. Keep your hopes up high folks.
I'm sorry to say it, but this is
really bad advice. While it's true that there are always people who reserve rooms and don't show up, I would
not recommend that
anyone count on this for the purposes of getting a room. The odds of showing up at the hotel without a reservation and getting a room are, for all intents and purposes,
zero; in other words, the polar opposite of "more than likely." Even if you were to get lucky and someone decided not to show up and you got to it before anyone else, you still wouldn't get a room on Friday night; if a room is reserved and someone doesn't show up to claim it, they don't release it until
the next day.
Please do yourself a favor and reserve a room at an
alternate hotel instead of counting on scoring a room at the Marriott without a reservation because it's just not going to happen.
All that said, this thread is not about finding a place to make a room reservation; it's about sharing hotel rooms. So let's please bring it back on track. If you need to reserve a hotel room somewhere, please post in the thread linked above. This is not the appropriate thread for such discussion.