Skyrim appeals to the mass amount of people and if skyrim isn't the right game for you, you probably would've found out after the first time of playing.
Also due to Skyrims HUGE map and randomly spawning dragons, bandits, wolves etc its an unpredictable game, anything can happen at any time. You can also choose what quest you want to do and when you want to do it.
I think that the game has too much to offer for a person to say "i will never play this again" and i don't mean someone quitting after a week of playing, i suppose that is normal if Skyrim isn't for them, but i mean someone who's been playing quite a while, if they were to quit it would surprise me.
Obviously i haven't covered everything in this topic but tell me what you think, i'd love to know if you agree or if you think Skyrim is a more quitable game than the generic first person shooter 'Call of Duty'...thanks for reading, jeazz.