I know I love to shoot a short approach, vectored in high and fast, with a full boat and a nasty crosswind. That's the 5 minutes of each day that gets my heart going.
Or fly a leg through an East Coast storm, shoot a tricky ILS to minimums, and have 75% of the passengers drop off a used air-sickness bag with the flight attendant.
All the other tedious B.S. that we have to deal with (ground stops, overnights, long periods away from home, etc) is worth it when you finally get to fly the plane like its your first flight in a C152.