Hi Srikanth & everyone else,
--cut-- i think there are a number of really compelling answers to
the "What's in it for me?" question - and I do want to share my take on
it.
Thanks for sharing your thoughts in a nice and comprehensive way, which I am sure will be useful to all our community involved in outreach activities.
I feel that sharing of the experiences of experienced Wikipedians involved in the outreach events will be much more effective in communicating the message. I use the nicely produced Wikipedia promotion videos apart from sharing my own experiences in the events that I participate.