As mentioned above, you have choices. Mather Campground on the rim, reservations needed, Ten-X Campground I believe is closed. Tusayan is expensive. Maswik has better prices during the winter. The cabins and dorms at Phantom Ranch book
a year in advance, Bright Angel Campground at Phantom takes reservations. Best to
plan for snow on the rim and for the first couple of miles, take crampons, Babbitt's (Village Market Place) sells them. Monday, November 28, Xanterra.com is having a
discount on some national park lodgings. PM me if you need other info.
"If you understand, things are just as they are; if you do not understand, things are just as they are."