Mac resell values, and where to sell?

[hoogie]

Hi All,

I am thinking of selling my 2011 MacBook Pro and upgrading to a MacBook Air.

I have heard people saying that Macs tend to hold their value well, is this the case?

Also I was interested in what the best place to sell Macs is? Is Ebay the best bet or are there specialist Mac resell sites?

Thanks