@kendog: I mostly agree. After all calculations the Antminer was my top 1 device. But even if I would get a used one for let's say 1500 USD, it doesn't look too good.
Why buy used? New Antminers go for about $1200 (1.45 btc).
Why buy new if you can get a used one for 30% or more off?
Seriously, for miner, the price and delivery date is the most important.
Though the lifetime of a used unit maybe shorter, it is not really that important.
I bet most of those ASICs will be shut down when it is no longer profitable to be run, before they are no longer working.
