Wow these are terrible specs. Zero improvement from the other 7 series.
s9 - 14th = $1415
a761 - 8.8th = $1400
Sure seems like a no brainer to me. Even if your S9 arrived with a dead board it is still a better value than this machine. When you consider you also need a controller to run the Avalon the deal gets even worse.
What a disappointment.
PSU included, much better Avalon reliability included, but apparently aimed at the China market ONLY.
Then you get to factor in the HUGE price jump on the last S9 batch, though that did happen after your post.