They're just like the king-size candy bars, only smaller!  Besides, you've got a much better chance of getting these than their parental-types anyways, plus there's a better chance for variety.  And some even give you great jokes like this:

It's that kind of stuff that keeps us on our toes here...

As a couple of the girls I have dated would say, "Don't worry, size doesn't matter."  Just because they were lying, doesn't mean that I am.  This stuff is almost as good as the full size, but more fun, as is evident in the name "Fun-Size!"  

If you're looking for something to keep around the house in small bowls, this is the ideal candy for you.