I AM very confident with the $1900 one :
1. More than 3 months after monero change algo (just a little different than cryptonight), X3 might update its firmware just like Baikal's miner.
2. For Monero only, with total 4 batch of X3s and if each has 10000 units for total 40000 units means hashrate will rose by 8.8 ghs. With current around 1 ghs and X3s 8.8 ghs for total around 10 ghs, it still mining $20 a day or $600 a month (220khs of cryptonight in Nicehash $200 per day now). Usually Bitmain's Batch only 5-6k or, it will more profitable.
3. Even if it can not mine Monero, there are many coin that can be mine AND there are auto switch pool or rent service like Nicehash so its still profitable.
4. Competitor doesnt have anything big to compete, so network hashrate wont be that big. I would love to add Halong but their miner not be seen anywhere.
5. I always touch break even point at whatever Bitmain throw, even D3 that hated by everybody. All calculated by coin not USD
The point of mining is INVESTMENT for a long time. If you mine with S9 right now and sells the coin right away at 8-9k, then you miss the point and of course you will have big loss. Hold the coins and set sell order at your favorite exchanges with 5 times of its price right now OR atleast wait for next halving.
Im not siding with Bitmain BUT they almost counter every competitors with better hardware. I bet when new SHA256 miner with 2x efficiency, Bitmain will release 4-5 times better OR cheaper.
Good luck and I wish you the best on your positive outlook,but...........Bitmain is offloading the X3 miners
they filed a certificate of conformity on 01/23/2018 which means they have been mining the X3 for months and when Monero announces POW change to V7 they all of the sudden want to sell ? Not only this ,but there are 4 manufacturers total announcing Cryptonight miners for sale now. This is worse than D3 scenario people can use rose colored sunglasses but reality is this situation is not looking good for any one who purchased any cryptonight ASIC.
For FYI's sake, that cert of conformity, if you look/read it closely, is for their "Antrouter's", not their asics.
Devil is in the detail.
True.
My saying in many many posts in here: Read the sources, ask the sources, read it again.
Most content in here is factoidal and of course without any technical own knowledge.
Just copy and paste what anybody wrote in Reddit or somewhere and then its getting repeated to the end; sometimes even wrong!
Anyways: If this detail and factum was already wrong --- what else is wrong mentioned in here?
I am happy that I dont care (believe) in XMR as the ultimative financial blockchain; but that is my believe.
Therefor I orded just one for USD 1.900 to see what it will lead to and just collect the coins. The 550-600Watt are just peanuts for the fun.
Anyways: All GPU power to Vitalik