Genesis Mining Platinum contract is $1380 for 20 mH. That is very high: $69 per mH.
Altcoin Cloud Mining lists providers selling for under $30 per mH, which means your ROI will take half the time.
I agree....Prices should be lowered.
I purchased a Falcon Miner (27MH) hosted on cloud with 570 $ (21$/MH)
Excluding the daily fees an estimated daily payout is 6,45 and the ROI 3 Months.
Prices could always be lower, but let us be realistic (calculation follows below). Some people here spam several threads with the same message: XYZ is too expensive, buy ABC instead.
Do not fall for it, whatever ROI they might promise you! If there is no registered company or the people behind the company are not known it is likely a scam attempt! History of Bitcoin is full of scammers. Transactions are irreversible! So only do business with a registered company, where the users behind the company are known. "Gawminer" and "Genesis Mining" fall in this category in my opinion (as does some larger Bitcoin hosting companies). Do your own research!
An anonymous promise for a high ROI is worth nothing!
Now for the numbers:Gawminers offers the Falcon for 600$. Electricity cost for one year is 867 USD (at 0.1$ per KW/h *). This results in 5.3 USD/cent and is marginally smaller than 5.9 USD/cent.
However, this calculation does not take into account: customs, shipment fees, own work needed with configuration, delays in shipping, downtimes (they are significant!), and if the machine fails you are in trouble because you will lose time and might even be without warranty (check this: in most cases it is only one month).
If your local electricity price is below 0.1 USD and if you are experienced with mining and have enough spare time, then go for it for the *fun* (you will not save any money, alone if you factor in your opportunity costs).
(*) this also takes into account that official specs for electricity consumption are only theoretical values under optimal conditions. In my own experience the real consumption of electricity is significantly higher (due to inefficiency of the PSU, additional gear you need etc. ). I have used 990W for this calculation, which in my own tests is closer to reality.