Spondoolies-Tech is back with an 540 GH X11 Miner

Hi,

and Old-new Player is back in the ASIC Market, former BTC ASIC Producer Spondoolies is back!
They former Leader, Guy formed a new Company, which can be found here: https://www.spondoolies-tech.com
There first offering is not a BTC miner, instead they are going for the Altcoin market and offer an X11 Miner.

Core Stats:

Price : 15.500$

Lets see what that Price Tag means in Term of ROI...

with 5 Cent Power Cost:

Time to ROI: 15.500$/64.57$=240.04 Days to ROI with static Diff

with 7.5 Cent Power Cost:

Time to ROI: 15.500$/61.79$=250,84 Days to ROI with static Diff

with 10 Cent Power Cost:

Time to ROI: 15.500$/59.14$=262.08 Days to ROI with static Diff

with 15 Cent Power Cost:

Time to ROI: 15.500$/53.86$=287.78 Days to ROI with static Diff

There claim that this is most efficient X11 Miner looks reasonable but the Question is how much of these units will be deployed to the Network and how does that affect the earnings.
Lets have a look at the biggest X11 Coin which is by far still DASH:

so it looks like DASH Diff is goin more Sideways within a reasonable Range.

In Terms of Hashrate DASH has currently:

so 1.6 Petahash equals to 864 Spondo Miner.

That means effectively this Miner is a NO GO, since Profit will shrink pretty fast, if they roll batches of 250 or even 500 Miner.