Good luck to the people that bought miners for the early batch (sept). There will be an initial spike in profit but once the difficulty catches up, it will start to decline. Hopefully you can get your money back before the market bottoms out. I'm predicting some half price A5 miners on ebay in the new year. If you have access to free power, then play the long game and you are set.

That being said. If you can get your hands on a demo version in august. Then pay over the odds for it, it will make it's money back in two months. Need to get in before the flood of miners hit the market.