I think over $3k would be too high considering the M20S are under $3k at a slightly higher hash rate.
This is not how you compare gear prices, besides quality and the other obvious factors,there are two major factors you need to consider when making such a comparison.
1-Price per Terahash
2-Watts per Terahash
Now depending on a few factors , power consumption in many cases is the most important factor and based on that, and assuming the S17E does 64th at 2880w i see no reason why it shouldn't be selling for 3.5k or even 4k despite the fact that the M20s does sell for a lot cheaper, those 500w difference are worth a lot to many people , and to be honest 64th at 2880w is a freaking beast, I doubt any other company will get to that efficiency by year end.
Another reason is that to me, bitmain in the mining industry is like Apple in the mobile phone industry, they always get away with selling over priced products just because of their brand name.
