Hi all,

As you can see I'm new here

I've been having a look around for mining hardware and came across the Black Arrow Prospero X-1 bitcoin miner. I was thinking about getting 3 of them for a total hash rate for 300Gh/s

However I am unsure about the rapid change in mining difficulty ..... When I used the mining calculator at thegenesisblock it basically tells me that by the time the miners are available (end of Feb'14) there will not be enough time to make back my initial investment before the difficulty level gets too high.

Am I reading to much into this? Surely this can't be right? What's the point in making hardware for people when they wont be able to make back at least their initial investment? Am I missing something? 

Can anyone shed any light on this for me please?

Cheers....
Netfq