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