WHY? (AC Marathon)

So far my post-marathon routine has consisted of zombie-like wandering while my brain and feet battle over whether they're allowed to stop and sit down—which all the run gurus decry as a painful decision. Eventually my feet realize they don't need to listen to my brain, and I sit down. Sunday my feet won the post-race battle in Boardwalk Hall in Atlantic City. My support team of Kristin, Mom and her friend Mrs. H watched as I joined other racers in the Hall--wrung out and spent. Mom finally asked a young guy
near us the obvious question:
“Why do you guys do this?”