Too bad, I wanted to upgrade over the weekend. ROI wise it is an interesting product and Dash is a good X11 coin. Not too surprised to see that it is sold out

Any chance it will be back anytime soon?
Don't regret it, I just bought 1MHs X11 for 0.086BTC. My first whole day payout was 25000 satoshis, then 23000, and now 20000 satoshis. I suppose the reason behind the decreasing payouts is the rising Bitcoin value.
But if I count with an average 23000 satoshis per day I need 374 days to get my investment back and the contracts are for one year. So this way I don't expect any profit but a loss.
What do you think?
My thoughts:
1) The X11 payouts of GM are in line with what you can expect according to other sites, e.g., nicehash. So GM payouts are in line with the market.
2) GM paid BTC 0.007066 in total for the first 26 days. So if the average stays the same, the total payout is about BTC 0.099, or about USD 28.3 by today's prices. That means a profit of 15%; and with a larger contract ($19 per MH/s) about 27% profit.
3) Calculation by today's Bitcoin prices: one MH/s diamond (the most efficient) costs $19, or BTC 0.0667.
Based on 26 days payouts: total income = BTC 0.0992 (expected profit of 49%)
Based on the 23,000 Satoshi: total income = BTC 0.084 (expected profit of 26%)
This means that the contracts would be very profitable. Of course this means that the attractiveness of X11 coins has to stay the same, but this is something everyone buying a X11 contract should know anyway.
I believe in the X11 coins (in particular the value of Dash), so I regret to not have upgraded before they stopped selling.