You can be glad you did not order a inno miner for 10k which does 30GH and is not even out.
Bitmain wanted to burn the competition and threw out so many D3. They achieved it.
They do the same they did with competition for Bitcoin-asics some time ago- flood the market with their miners for cheap price so ROI is impossible for the other buyers.
Now BM has even delisted the D3, they very well knew what they are doing and stopped selling them now. The bombs have fallen. But not all of them - yet.
I wonder how many ASIC manufacturers also use the first batches to mine themselves and make way more than selling the hardware right away.
Also, I coulnd't find info but it's
estimated the D3's use a 28nm fabrication process while the S9's are using a 16nm process. So there might be 16nm (
or even more efficient ASICs) X11 ASICs on the way or even already working in private hands. We just don't know, we can only see the difficulty but we don't know the numbers behind each company.
I think the ASIC bubble will pop soon for Bitcoin as well and people will realize they can only earn peanuts after the big boys funding their ASICs discard them once they're done. And while having more ASIC manufacturer is certainly better on paper, the possible profits to be made (and investments to be lost) makes the nature of the competition so cutthroat I think where most ASICs will eventually go to a couple of private hands instead to home miners.