I once worked at a grocery store for a few months in high school just because a girl I was interested in was working there. It was worth it. I ended up marrying her several years later.
Mostly money though for my other part-time jobs when I was younger though. I had (and still have actually) a self-employed gig on the side surveying and lining soccer fields that I've been doing since I was 14. I made tons of money doing that growing up (avg'd about $50-$60/hr for about 3-4 hours of work a week) so I didn't have to work as many traditional part-time jobs as a result.
In college, it was all about experience. I still did the soccer thing for money and did summer student/intern work at big corporations for professional experience (and also for money.)