Wow. 900.
I got customs hassles with just 35 S5's last year.

I can say my experience with Bitmain has been 99% good since my first S3+ purchases.

The 1% is a set of S7 boards I sent for repair that apparently were lost. I shipped EMS and tracking says 'delivered'. But Bitmain can't find them.

As for price, you can choose to mine or not, based on price. If you choose not to, and so do others, the price will drop. It's sad that only Bitmain seems to care about selling to smaller miners but I'm glad they do.