I have to agree with stan.distortion here. It is incredible how little people understand something that they are dumping thousands of dollars into. The value of the currency is directly tied to the profitability of mining and therefore whether people enter or leave the mining market. As hash power goes up, difficulty goes up, and rewards go down. If this forces some miners with high electricity costs out of the market, then sucks to be them. This is how virtually all Proof-of-work blockchain cryptocurrencies work. Dash will not fail if a couple miners leave the market, because the difficulty simply adjusts downward.
The only way to be seriously profit in the mining business is to have dirt cheap electricity and/or to get into the next hardware generation before anyone else can (eg. like Butterfly Labs used pre-order funds to fabricate hundreds of SHA256d ASICs before they were publicly available, and then used them to mine for a couple months before shipping them to their customers...illegal, but effective). Both of these methods ensure that your hash power is cheaper than the vast majority of the network's hash power, which makes you more profitable than average, and hence you turn a profit. If you are only at an average profitability, you will never turn a profit, because more and more people pile in hash power at average profitability until it no longer turns a profit.
Btw, Dash would fail if they started handing out buckets of Dash to whiny miners who didn't understand what they were doing when they dropped a truckload of cash on some Asic miners that would be obsolete in 3 months. That would be called inflation, and would drive your profitability down as well, not to mention the value of everyone else's Dash.
