How Much Does It Cost To Make A Bitcoin?

It will be interesting to see if the rate of people buying and selling Bitcoins (for actual currency) over time continues to fall. There was a time that buying bitcoin for money would not have been worthwhile because then you were effectively providing the value to two parties, yourself and whoever owned the bitcoin. However, now that cryptocurrency is becoming recognised as a valuable commodity this bar has been lowered very significantly. So it will be interesting to see how many transactions for between $100 and $500 USD can be attributed to Bitcoin instead of credit cards or other potentially untrustworthy methods. We all know communism works in theory but does it work in practice?