I must admit, I was totally surprised to see that there is still some availability at New York City Hotels with Thanksgiving Day Parade Views Rooms. It's certainly not the cheapest way to enjoy the parade, but as of this morning, the Ritz-Carlton New York, Central Park had seven parade view rooms available ($1495/night, 2 minimum). At the Mandarin Oriental, all the parade-view rooms are booked, but all hotel guests will have access to view the parade from the hotel's 36th floor ballroom overlooking Columbus Circle), and they do still have some rooms available both online and through the hotel directly. Although the parade view rooms are typically booked months in advance, it never hurts to give a hotel a ring to see if they've had a last-minute cancellation or availability.
Photo of Santa Claus Balloon © Dan Cross, Licensed to About.com