The Agora is in a shitty part of town, a total ghetto. Get a hotel on the West Side, preferrable close to the airport. The last time I went to the Agora when they had two shows going on at once it was totally awful. I don't think it will be as crowded as that show. That was In Flames and Iced Earth played with a rave goingon in the Theatre (talk about your mixed crowd).
It will probably not sell out, but it will suck if that is true that another band playing in the Theatre. Fuck, now I am pissed! Either way, I will be there.
Out of towners, I repeat, STAY ON THE WEST SIDE NEAR THE AIRPORT! East 55th and Euclid is a total shithole. You will see the hustlers hovering around the place. As a Clevelander let me tell you that Cleveland really is a great place, but this particular neighborhood sucks badly.
To leave take E 55th street South and take it to SR 71 S, get off at W. 150th Street (About 8 miles). There are several hotels there and it is quite safe.