I've been buying, upgrading and resaling Mac's here lately to keep myself busy while I'm out of work and have had great luck on Craigslist. I did sell a pc laptop on eBay but only because it was such a high end laptop I wanted to get the most I could out of it. I sold a couple of Mac's on eBay as well but in the end it just isn't worth it. Yes, it will probably sell for less on Craigslist, but once you factor eBay fees, Paypal fees, finding a box and properly packaging it for a shipment, I think you'll end up about the same selling through Craigslist. The pc laptop I sold on eBay cost me $200 in eBay fees, $70 in Paypal fees and $80 for shipping. But it was more that the $1200 people on Craigslist were offering for it after all fees were paid. But the Mac's I've sold from $100-$700 I've had great luck with. I've had a couple MacBooks, 8 PowerMac's, a couple MacBook pros and a few eMac's. Just make sure you meet in a public place and when it's light out and you won't have any troubles. And trust your gut, if they don't sound legit, don't meet them, or take a buddy with you. Just don't be one of the idiots that puts and ad on Craigslist like this:
I have a mac for sale. $600 call or text
and forget to put their number in. Be descriptive, give the Mac a fresh restore of the OS and when you put your phone number spell some of the numbers out to prevent bots from texting you with the "I want the item and will pay $50 extra if you ship it to me" scams. Good luck
Victor