Well I put a MBP add on craigslist yesterday and basically every response I got was from a scammer wanting to pay more for the listed price or have me ship to a different address or some other reason. I would say like the previous poster is meet in person at a public place...take friend....avoid carrying lots of cash....or just go to ebay and buy from a reputable seller. Or contact me I'll sell you mine. I'm trust worthy
Craigslist is swimming with scammers of one kind or another. I don't know if I really want to deal selling/buying high priced items there.