I just can't take the gamble on a CT unit, even though it would really be a lot of fun. FWIW those ANTMiners run great on $40 eBay sourced Corsair TX650 PSUs all day long... I should know I have 3.2TH of them
You make a great point.
The combination of lower BTC$USD, crazy diff jumps, and Antminers that arrive in 7-10 days from your order, because they're already in stock.... are wrecking havoc on used ASIC sales.. as they should.
As of this moment, AntMiner S1's are 1.11 BTC, WinkDex says BTC$USD is 629.59, meaning each S1 is $698.84. Add $50 for a PSU, and at 200GH (which 100% of the S1's seem to run at) that's $3.74/GH for NEW equipment. NEW. (yes, the S1's pull 2-3x the power per GH Cointerras do, so if power is expensive for you, that's a consideration)
To me that says anything MORE than $3.75/GH for USED hardware is too much money. Given how fast S1's ship, you can't even argue the used one would arrive faster..
Anyway, that's my long way of saying, I agree, and $12k is way too much for a used Cointerra box.