AAA Colorado says that 640,000 Coloradans will be on the move over the Labor Day weekend despite the fact that gas will cost $.50 more a gallon than it did last year. AAA spokesman Skyler McKinley says people are willing to spend more. He says it should be the busiest Labor Day weekend for travel in Colorado since 2005. Colorado drivers will pay an average of $2.80 to $2.95 a gallon for gas. In Vail, the price at the pumps will average $3.24 a gallon.