I can see in this chart that the dash mining difficulty doubled only during the last month.
https://www.coinwarz.com/difficulty-charts/dash-difficulty-chart

And that's without these super powerful beasts in the market. So how possible it is the difficulty will follow this trend and by the time we get the A5 the difficulty will be 8x - 16x higher than now? Which would mean the profitability will be lower by the same multiple? Is that a viable scenario?

Guys, I'm probably missing something about the ROI. You're saying the return of the investment ($10k) is going to be over a year?

When I put the numbers into the calculator here:
https://www.cryptocompare.com/mining/calculator/dash?HashingPower=30&HashingUnit=GH%2Fs&PowerConsumption=750&CostPerkWh=0.33

the calculator says it should make $15.4k a month. Which makes the investment return in less than a month. It indeed sounds too good to be true. What am I missing? I'm seriously considering buying this stuff but I'm not an experienced miner yet.

Thanks