I wouldn't sell yours to any of those "We buy Apple products" sites if I were you. You're pretty much guaranteed to get a low ball offer from them, and they'll try to convince you that you're getting the best price for your item.
Yea, I suspected that much, but the one appeal is the convenience, and in the case of Gazelle, they appear reputable; they're offering $769 for my mid-2010 15" i7 500GB. I haven't dealt with a bad buyer in eBay before, so I don't know how much of a hassle that might be.
I'd put up a listing on Craigslist, and if you can't get any bites within the first week, put it up on eBay. Even though you'll have to pay fees, you're probably still going to get more than through any of the product buying sites.
Craiglist is still a consideration for me. Only issue is I've never used it before, so I'd have to do some reading on what not to do, what to watch out for, etc. And I live, not by my own choice, in a semi-small suburb, so I'm only guessing there'd be less buyers interested.
As for eBay, I used it without problem many years ago. I'm only hesitant now as I've never tried selling a high value item through them. Part of me wonders: what if the buyer, for a manufactured reason, decides he doesn't want it, and upon sending it back, returns it with a tiny scratch somewhere; so I wonder what the eBay policy is then, and then just imagining this scenario now is making me fatigued. Nonetheless, I just checked eBay while typing this. They say, in the text below the product image, that the average selling price for my model is about $1,000 (
http://www.ebay.com/itm/APPLE-MACBO...33467716?pt=Apple_Laptops&hash=item43b110a844 -- not my listing), before eBay fees and shipping costs. So compared to Gazelle, there would be about a $250 difference, which I think I'm okay with, as a hedge against potential inconveniences, dishonesty.