3 ms·
Pay $5. Their marginal cost is essentially $0. I'm willing to bet the authors would rather have the $5 than nothing, and that is probably why it was priced this
by reefoctopus 11y ago
Pay $5. Their marginal cost is essentially $0. I'm willing to bet the authors would rather have the $5 than nothing, and that is probably why it was priced this way.