I got the same impression, and I think I'll wait till mid-January to schedule so I can possibly avoid scheduling over another school's visitation time. If there aren't any other conflicts I'd like to go in the second week of February.
Applying to PhD programs at the following, planning on biophysical (single molecule imaging/membrane studies)
Stanford
Harvard
Illinois
GA Tech
Emory
UCLA
Boston U
AZ State
Washington
Oregon