I'd be extremely wary of eBay. Just search "scams selling laptop ebay".
Not to beat a dead horse -- but selling a high value on eBay right now is one of the riskiest things you can do selling a laptop. There are several variants of scams that go through eBay now -- but they all are similar in that they create or use compromised accounts to win auctions on high value / extremely portable items like MacBooks. Since they have no intention of paying, or are using fraudulent funds they bid to win.
At this point it splits into a few potential options, one they try to trick the seller into thinking they paid by requesting your e-mail and sending fake "payment received, OK TO SHIP" messages, or they pay using a fraudulent credit card. If you're savvy you should be able to catch these scams and not lose money -- but given that you spend a week running you're auction, then another week dealing with PayPal to cancel your auction and release you from any liability -- you're going to lose time. I tried to selling a MBA on eBay a year and a half ago -- I had three auctions come to this conclusion. I gave up.
Another way it can play out is that you do sell it, get paid, ship it. Then next week, or thirty days later, the buyer is unsatisfied and files claim with eBay as "item not as described". There is no counter to this -- it force you to accept a return (and you're out shipping). Best case scenario -- you get your laptop back worse minor wear, worst case scenario -- you get an empty box, heck maybe you even get their old laptop that was broken and they just wanted to run a swap-a-roo on you. Regardless, you have absolutely no recourse. It's he-said-she-said and eBay will invariably side with the buyer.
I'd suggest searching this subject before you decide to sell your laptop on eBay. I'm sure people will come chime in and say "I sold it no problem" and you may very well sell it no problem, but there is a high chance you could lose everything. Is it worth the risk to you? I know it isn't to me. At least on CL - you get cash and sale is final. CL has it's risk, but you can be cautious an reduce most of those risks, where as on eBay you have very little control.
This is only my two cents on the subject -- so take it as you will.