Am I sure it's fun? Yes. You get free booze, a meal that isn't bad, 1st to board the plane and exit, and it's not so much the wider seat it's the extra legroom. Tall people aren't eating their knees and you can actually recline your seat. A bathroom you only have to share with a few other people. How much all that is worth is certainly debatable, but it definitely makes for an immensely more enjoyable experience.