However, since it is shipping from the US (or China) it will take longer to arrive and the customs can hold it up for a week. In addition to that, if it is send using regular mail (USPS etc), then the customs do not believe the declared value and ask me to send an invoice. I can do that preemptively if I have the tracking umber, but if I don't, I have to wait for their letter (takes a few days). Then I would have to tell them that I paid 1.9BTC for it and could have problems if they don't know what BTC is or if BTC has risen in value since then.

And hopefully the HEX8A1 will get higher hashrate with newer FW (because chips can do up to 40GH/s or so Bitmine claims).

That being said, I am quite tempted to buy one Antminer...