Well its encouraging to hear 4 years and still happy or even content. That says alot(for one person).
Long haul versus "out n back" s, why are the long hauls so coveted? Ego probably, why else sit in a pressurized tube for 8, 10 or even 16 hours ? Do you realize your insides turn to cement after a while ?
Long hauls are like a shiny toy for Christmas, Hannukah or Kwanza, after playing with it for a while the shiny wears off. Promise.
Your results MAY vary.