Denver has a stunning supply of Canon equipment for sale on Craigslist almost any week. Anything you want can be bought for a reasonable price face to face for cash after trying it out, if you watch it daily. I bought a 24-105mm that wasn't even a white box version (for a friend), with all that came in the original box, for $500. There were three for sale that day. A few days ago there was a Zeiss 18mm f/3.5 for $900, down from an asking price of $999 two weeks ago. I paid $1K a year ago on eBay for my Zeiss. I just bought a 300mm f4 IS L for $1000 that is a year old in the original box with everything that originally came with it. Your selling price will depend on what kind of volume turns over on Craigslist in your area. At the same time someone is trying to sell a 40D and 28-135mm for $900. That will never sell for that price, at least in this city. At least on Craigslist there is no fee in most cities, you can demo it to your customer, and even make the transaction at a bank. That is how I bought my 6D.