I don't give a damn how much time any president takes on vacation. He is not elected to perform every federal job himself. THINK, CREATE, RUN AN EFFECTIVE TEAM, LEAD. Inspiration can come at Aspen as easily as 1600 Pennsylvania Avenue. Hours punched don't count. Performance counts.
I worked a very stressful job, a lark compared to being president. We had many weeks vacation each year. I dreamed of touring Europe, bicylcing around, acting as a native rather than tourist. To save my sanity, those weeks were broken up into 4 day weekends.
Do you remember all those shocking photos of how presidents age? They were showing Obama's age progression on the news. A computer showed average aging. He is more than x years older now.