I am making this run by starting the day at the rest area north of El Paso on the New Mexico state line, so out goal is a late lunch at Mi Nidito in Tucson - my new favorite Mexican food place. That puts us leaving there around 3:30, so manning up for San Diego so I can arrive at Chula Vista at O'dark thirty doesn't make much sense. I've made this run 3 times in the dark but never stayed anywhere. I'm liking the casino option as it should be cool there.