I have been searching for any leftover stock for 2011 27" iMacs but have not been successful. Anyone know if these are still available (at discounted prices)?
Amazon, macmall, and micro center typically do, but not this time around.
Probably very difficult to locate. The best bet is to find resellers or buy from Apple's refurb units, while not technically new in many cases they are better than new.
Yep, check out Apple's refurb. I also recommend visiting refurb.me as you can set alerts on the machine(s) you want for when they become available for order.
Typically refurbs are as good as new and you can't tell the difference. However my recent 21.5" purchase has had a issue with the screen now going out, have an appointment with the Apple store today...