If a person gets the swine flu, and it is mild and they "recover", do they even need the H1N1 vaccine?

I was just thinking about all the people I know who have gotten H1N1 before they could get a vaccine, and they are fine. They personally do not need the swine flu vaccine now, right? That would also imply that they would be unlikely to get it again (at least during this flu season), right?