I rent my 1ghs rig out on ebay and make way more than i would mining and then i can purchase BTC with cash or reinvest money in more equipment. I think there are endless opportunities
Myself, I got one GH/s free on cex.io when they still gave away for life, but the mining from that does not bring in any big money!
Yeah not big money at all... but you start with little and grow it into something big. and you play a longterm game.
that's the fun of it. at least for me...
Anyway, I dreamed about bitcoin last night again. I had a company and I traded hundreds of thousands of bitcoins every minute, and then the trading volume increased, and increased, and increased even more. And then I woke up. Weird.