You should at least offer some advantage to people that bought a while ago. Overall, I will be extremely lucky if I get back 50% of the btc I invested.
At the moment, I would advise everyone to keep their BTC and not invest with you. This was the worst BTC investment I did.
+ 1 !!!
I invested the first of June...what a loss...my first very bad invest...i trusted GM...what a mistake...no reward for early adopters...nothing...
But all is my own fault...
Mining is risky, and it is hardly GM's (or scryptcc, or Gawminers, ....) fault if the value of the altcoins dropped that much. Logically you should compare your investment to buying a portfolio of LTC / Doge with your BTC. Then you would have lost by now like 60% of your BTC. Again this is mainly the result of LTC / Doge / ... losing significantly against BTC, which I honestly did not expect to happen either. If altcoins would have accelerated like before, the story would be a different one. Too bad, but no ones fault.
By the way: I did quite well with mining some of the smaller coins. Had a good experience with mining Reddcoin for example.
For investments I like to quote Warren Buffet: "Be Fearful When Others Are Greedy and Greedy When Others Are Fearful"
Yeh Reddcoin was good, was at 1 satoshi for a while, Cryptsy was going to remove the BTC market and then suddenly whoosh, up it went to 30 satoshi and is now hanging around the low 20s so if you mined them when GM first offered it, you could have got quite a few before POW ended.