The A3 looks curious.....It's about 1 BCH shipped +fees/vat - I've got about 0.3 from a month of S9 usage which was worth a lot more a couple of weeks back.
But it doesn't ship until March and there has been a lot of them shipped i'm guessing and by March, who knows....Very two minds on this. The one coin worries too!
On the other hand looking at my S7's on Nicehash, the low value of the coins are now making it just unprofitable
However I'm hoping that the market will move back up....But arguably it was going to happen to the S7 at some point and at least I have the PSU's