do not buy anything from Minerwarez neather from Canaan. I email them yesterday about the issue but they did not care at all.
here is their email:

The reply message:

I am sorry for your situation.

we do not retail now, so, if your order is less than 60, you have to buy from distributor.

The reason why distributor Minerwarez increase the price dramatically may be that our A821 price is higher than A741.

You can see price on our website      https://canaan.io/shop/ . BUT     Our price is not high, compared to other competitors brand. You can check on the Internet.  The demand for miners in the market is extremely strong.

What's more, the performance not only depend on the hashrate , the power consumption is also very important.

A741 is 7.3TH/S， the power consumption is 1150w.  A821 is 11TH/S , but the power consumption is ALMOST THE SAME:1200W.  So, the performance do increase A LOT.

I know you did not get your A741, but we have limited inventory and SO MANY MANY people want it.  I am sorry you miss that .

In addition, we do want to help you. But once the product is shipped to distributor, we can not restrict how they sell ,even the price.

Therefore, I think you can take refund or pay more to get a miner, it is not easy to get miner.

Hope my answers are helpful to you.

Best regards

Ann

what do you think? me I am pised and will never ever buy anything from CANAAN. you will waste your time and they will use your money to make money and give it to you back after months. free money for them.no interest,nothing.

Just to let you know Mr NotFuzzyWarm, I do not want the money. I want the miner and that why I bought it. I would have kept my money.

I just got an email from minerwarez. they say the price is $2898 each.
so, I bought (2) A741 for $1600 total and they are 7.3TH x 2 = 14.6 TH.
Now I have to pay $2898 for one A821 that gives you only 11 TH.
WTF is this?? we shlould sue them for holding our money and use it.

copy of the emal:
Avalon 821 Purchase update for unfilled December orders:
Thank you again for your patience and understanding.  Canaan has made this special allotment available and, as communicated, this offer is available only for the number of miners previously paid for (i.e. for each Avalon 741 unit ordered, paid for, and not filled in December, customers can order one unit at the discounted rate).
The orders will be sent out in March 2018 and the price per unit is $2,898.00 USD (retail orders will open in April at a higher projected price point).  Customers wishing to order the Avalon 821 will be asked to make full payment by January 31st, 2018.  We look forward to hearing from you by January 15th, 2018.  Any outstanding order not specifying will be refunded for their December 741 order.  All requests for refund will be honored.
Below is the information provided by Canaan Creative for the Avalon 821.  We ask that you remain cordial in your interactions with our staff and with Canaan’s sales team.
Sincerely,
Minerwarez