E3 is too cheap and high hashrate compared to single GTX 1080ti.
The price is just like a single 1080ti and this card can make around 40mh/s to 52mh/s based on my experienced but the e3 is too cheap with 180mh/s.
And I think they don't tolerate those developers to make an ASIC miner for ethereum because they said that ethereum is ASIC resistance as they promise.
At $800 it WAS too cheap but at the current cost of $1876 plus power supply, plus shipping it ends up at about $2200 USD delivered in the US. With unknown tariffs in the future, it could be even more. I think it is priced right.
The E3 180 mh/s spec is equal to about six GTX 1070 GPUs or six AMD Rx 580 GPUs with the right BIOS tweeks. With careful shopping, you can purchase those six AMD graphics cards for $2200 new or the six GTX 1070 cards for $2200 on the used market.
Add the motherboard, CPU, RAM, power supply, case, and nvram for linux mining OS, for about $350 more.
So the six card GPU rig can be built for $350 (15%) more than the Antminer E3, and runs quieter, cooler, and is much more flexible than the Antminer E3. We don't worry about ASIC resistant forks with the GPU rig.
The unknowns with the Antminer E3 are how fast can it be driven with overclocking, and how low will the price go in future Bitmain batches. We will soon get an answer to the overclocking question. The pricing and success will play out over the next year. I do hope that Bitmain publishes shipping information for the E3 like they just did for the Z9 mini. That was refreshingly honest of them.