The way I see it is anyone that adopted early (pre 2011) has it made if everything continues to go up.  It was easy to obtain hundreds+ of BTC then.  Anyone joining in the last few months has made some $ hopefully but nowhere near the earlies.  They had a much better opportunity to make BTC than we do now.  I haven't invested anything at all beside a new vid card and put out about 300m/h earning a measly 4 BTC in a few weeks.  At this rate of mining next diff.  I will be lucky to make 1 BTC a week, electricity will likely become a much higher factor I haven't worked out the exact numbers as its pretty much common sense at this point.  If the network continues to rise then making BTC out of thin air for people under 500MH isn't going to be as fun.  Investing the produced BTC is likely the next option for this group of miners as it simply wont be worth it to stress high end gear to pretty much break even.  Breaking even is a stretch when you count in the time/risk it takes to convert BTC into your countries currency.  With all the fucking bs hackers around you never know whos watching o.O