Last add about Needles: I drove from Kingman to Barstow in June, and the northerly desert winds were gusting in excess of 25-30 mph. The desert also has periodic heavy rains that create flash flooding. (US 95 between Blythe and Needles was closed for several days in November 2014.) And, in winter, the desert can occasionally have quite cold (not Northern Plains cold,) temperatures in the high 20s overnight. So, all things factored together, it makes sense to have a Supercharger located at Needles to make the Interstate 40 journey relaxing. Plus as another poster said, it also allows for snow birds and other north-south travelers to make it from Vegas to Yuma. The Cathedral City Service Center said that there were about 70 local Tesla owners, and that they expected another 50-100 snow birds from points north for the winter. Needles makes perfect sense for those travelers as the Indio Supercharger is about 3 hours/165 miles away via US95, SR62, SR177 and Interstate 10. It is shorter than taking I15 to Barstow and then SR247 to Yucca Valley and SR62.