I only buy on Craigslist. I haven't bought too many items, but ALL of the people I bought from had me come to their homes to pick up the merchandise. All have been very friendly. I usually don't stay too long and chit chat, because I have been known to empty my pockets on the other stuff they have had.
Having said that, Roger is right. Be careful. Public places with security cameras are pretty good. Walmarts, chain grocery stores and such all monitor the parking lots too.
I don't sell anything on Craigslist. I don't need to sell anything that badly to have perfect strangers come by. Just paranoid I guess too.
Just be cautious and hopefully you meet nice, new people.