That's what I do. I book somewhere cheap, as possible, but cancelable, then I troll as the date gets closer. If you book minivans or larger SUVs, the price might not get better, so those are good to book as soon as you have your air booked.
Owner since May 2008
Resorts Visited: Anaheim (3), Angels Camp (2), Big Bear, Clear Lake, Coral Baja, Dolphins Cove, Indio, Las Vegas Blvd, Leavenworth, Marina Dunes, Park City Miners Club (2), Phoenix South Mountain Preserve, Pismo Beach, Rancho Vistoso, Reno (2), Seattle-Camlin (2), SD Mission Valley, San Diego, SouthShore(12), Solvang, Windsor(11), Wolf Creek (2) II: FSA (2), Grand Luxxe Nuevo Vallarta, Hyatt High Sierra(2), Hyatt Highlands Inn, Paradise Village, Marriott Grande Chateau, Marriott Grande Vista, Marriott Grand Residence, Marriott Harbour Lake, Marriott Newport Coast Villas(3), Marriott Summit Watch, Marriott Timber Lodge(17), Monarch Cabo Azul(2), Red Wolf Lodge, Ridge Tahoe(5), Ridge Sierra, Welks Northstar Lodge(6) RCI: Disney Grand Californian, Grand Mayan/Mayan Palace Riviera Maya, Grand Mayan Cabo, Grand Mayan Nuevo Vallarta, Hilton King's Land, Playa Grande, Sheraton Hacienda del Mar