Bitcoin mining is still viable , There are so many ways to make it happen or successful.
Like okala said
Bitcoin mining have become a very consuming venture lately with high cost of electricity and software's before you can set up a mining farm now you have to have huge capital and cheap electricity supply such as solar system. But if you have a good location and friendly government policy bitcoin mining can be highly profitable.
When it comes to electricity Bill you could use solar panel to lessen the cost of your elecrric bills.
If you are going to invest why not complete it to make the most out of it.
And for sure it would be great for a long run.