One thing to say mining bitcoin consumes a large amount of electricity and it would take lots of equipment to manned the mining. There should be a development in making the cost of bitcoin lower; given that lower mining cost could yield a higher profit. However, it matters on trading and exchanges.
I have recently fallen into a situation where I get a free 30,000kwh for free each year and I still cant figure out how to make money mining. Really irritates me as I would love to do the project.