To engage with middle America, to overcome negative connotations, to answer critics, to be visible outside the traditional confines of a campaign, to be human/authentic/real, to be seen with celebrities, to get the message across.
To appear on Saturday Night live, alongside Tina Fey (the best Sarah Palin lookalike around) to allow the cast to poke fun and take it in your stride, to appear with Alec Baldwin and others, to smile and look like you are having fun.
To achieve the long-term strategy, or to look rather false or silly, to trivialise the campaign and its issues. To actually be seen to endorse some of the negatives voiced by Baldwin and Amy Poehler in her rap.
Should she or shouldn't she - she chose yes but was this the right decision for her as a candidate to be Vice President?