I bought a DC Powered A/C unit on Alibaba - fan came broken and the guy wanted $450 to ship a replacement.  He finally agreed to ship the item to the states and pay half, lol.

Would be interested to see what kind of deal and which ones you mention that are more reliable than most.....

As regards Halong - I think they remove miners that are not in stock now to prevent confusion.  They used to have a waiting list that you could apply for, but I think it was constantly full.  I believe the Decred miners will be relisted when stock is almost available.....

My biggest problem was I bought a few of the S9s and S7s on ebay, just before the price plummeted on Bitcoin, so paid on average a couple of thousand each (S9) and about $900 for the 7s.  I also bought 3 x D3s which kinda were worth nothing LONG before I got a chance to receive them.

I hope the D9 finally gets to me and is profitable enough to at least make back the purchase cost.

I'm in the process of expanding my solar panel layout, hoping to generate enough electricity to occasionally plug one in without running up a huge electricity bill, lol.  My best miners are the A3s which almost make the same as the power they draw, lol

Best regards
Paul.