so.. say you log on early, nab a room that seems to be available.. but the availability can't change throughout the week, can it, or at least until the lowest numbered person nabs the room? And then.. say you chose a room, it turns out someone logged on later with a lower number and chose it also, so you have to choose another room at the end of the week. by that time, people with lower numbers than you might have grabbed better rooms than what is available after the end of the week. Correct? anyways.. that's the problem i see here, but i'm not sure exactly how they're doing this..
Perhaps this was their intention. If you have a really high number and try to grab a good room early in the week, you are very likely to get kicked out of it and then have to pick after everyone else is done, resulting in a worse room than people with higher numbers than you got. In other words, I think it tries to self-regulate by making it more advantageous for people with high numbers to wait (as they suggest in their explanation) rather than risk winding up with the absolute bottom of the barrel picks at the end. But I don't really think that this is a well-designed system, and I'm not sure I understand it very well.