Vacationing during the off-season, November, December and January, has its upsides — think better-value hotels and airfares and less bumping shoulders with masses of tourists. But there’s an undeniable magic in the air during the busiest season. More events will be planned and more attractions will be open in May, August and September. If you want to stretch your budget, has the most affordable hotel prices. You can expect to pay more for a room in .