> If I can mine 1 bitcoin for $300 worth of electricity or buy one for $200, I should just buy instead of mine. The question of how many dollars I have is irrel

> If I can mine 1 bitcoin for $300 worth of electricity or buy one for $200, I should just buy instead of mine. The question of how many dollars I have is irrelevant for that. That's a fair point. I guess the only real difference between mining and buying is that electricity is usually paid for retrospectively, whereas buying requires you to have the money up front.