Bitcoin is like gold, you must pay real resources to get it. ...
Just because something costs money to obtain doesn't make it valuable.
If I charge you $4000 for a $2000 computer I've spent a week beating to a pulp with a sledgehammer, you didn't get a great deal. Even though a week of my time is worth $2000, and the computer did cost me $2000. I didn't create value, I have *destroyed it*.
Just like you spending $2000 on thumb-twiddling machines & burning $2000 of electricity doesn't create $4000 of value, it merely *destroys* it.
You mixed the cause and the result: It is demand created competition, and competition in turn increased the cost. In 2009 it cost almost nothing to get bitcoin since there was no serious demand
Fiat money on the other hand is a monopole system, no matter how high the demand is, there is no open competition to produce fiat money, thus the production cost will always be zero