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.
The thing is, it differs on what type of mining you will be inclined to. There are minings which is indeed needed to use electricity as well as internet connection, some are you just need to set it up then it can mine automatically. But the thing is as of this moment more mining sites took slowly to mine, so the cost you have invested will not be equal to what you can earn. But tyere are other ways of earning bitcoin.