Also important to understand that priorities change. For example, originally by the end of 2015 Tesla had planned to have the I-10 route to the west coast done out of Texas. However, based on feedback of owners and the SpaceX launch facility in Brownsville, they decided to move those chargers to cover south Texas, especially because there is an alternate west route (albeit out of the way) to head north to Oklahoma and then west. Now the plan is to have the southern west route done by end of 2016. Plans change.