I hate to interject, honestly. This was the first DSLR I owned (40d) and was 1st class in its day. It still is a very competent camera -- 6FPS and all cross-type AF points I believe. The price, unfortunately, has plummeted (spelling?) over the past few years and I barely got $400 for mine in 2010.
Just my opinion: keep it as a backup. It's a beautifully designed camera and still has great functionality (live-view is awesome!!). Good luck. Finally, Amazon will always fetch you the highest price in my MANY buys and sells. However, the 'Zon gets their lion's share of commission.