Just for a short stint even if it will not be your life long career. Be it part time sales promotion or insurance or even MLM. The skills that you picked up will be the most applicable in life. Let me go on further as to what the advantages of doing sales are.
1) You will be better in communication
Normally, sales people will have to come up with stories on why their sales numbers are better or worse than expected. Maybe it's due to the economy or competitor's marketing program. You will need to explain on why things happened. Of course, the stories get repetitive better after talking about the same things every year. Better in talking can also mean better in omitting facts that will be detrimental to sales.
Basically it's not lying, you just need to ask them the right questions.
2) You will be better in picking up bullshit
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