You're clearly really into this planet destroying ponzi scheme. You keep referring to something as a "sale". You have no way to compare the current price to the future price. Perhaps you portfolio is still tulip/beanie baby heavy too.

Bitcoin last year required something in the region of 134TWhs to maintain, for 4 transaction per second (https://news.ycombinator.com/item?id=29769892). Some nuclear pose stations generate over that in 20 years of production. The world is burning, but so long as you get more people to join the ponzi scheme, who cares, right, it's a "sale".