There's a refurbished 1712 on Amazon that costs $317. Apparently it has warranty also. (I actually just sent the seller an email and they say it's 1 year Denon warranty ).
I have another question:
Someone else recommended a DIY kit for the speakers and the subs. These are the speakers he recommended and this is the subwoofer he recommended.
Has anyone has any experience with such a kit? Apparently these DIY kits give a lot more value. I might play it safe and keep the Energys...