Sensible long-term goals: buy a house, open a business, invent something, travel, start a family, write a book, run for office, become a doctor, complete a collection, learn a language...
My idea of a long-term goal: spend probably half a decade picking away at an intensely difficult quest in an online game, a quest that will lock me out of my account forever once completed, thus being a completely pointless endeavor with the sole reward of being able to say I did it. Over the course of the rest of my life, I might meet up to two people who would be impressed by this accomplishment of ultimate masochism.