Fantastic post!
I put 36K miles a year on my car(s) commuting each year. But not all of them are on the Boxster. Most are put on my Civic (great mileage). Plus, getting through the endless construction and smash-a-thons that occur EVERY day during the DFW Metroplex rush hour can be nerve racking!
But your story is indeed inspiring for people considering utilizing their Boxsters as DDs on long highway runs.
TO