yeah, mining bitcoin is costly. Because it wants a lot of power for mining. In early times there was not required very high-performance utilities for mine bitcoins. But now, the situation has been changed. Miner should have high performed utilities for mining. And also it requires a lot of energy. So why I told mining bitcoin is much costly.
even though that it cost too much the coin that it can be provide for you and take for you are so much worth for your taking the cost of mining the tools and also the electricity provided by dont look how much or how is it can be think for that it can help the community of bitcoin as well.