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.
It came to the point when regular mining, one person involved is really not prospective anymore. You can not anymore take a profit having only one personal computer or something like that, you need to have a performant farms to earn at least something.