For large payments, that doesn't require immediate confirmation, Bitcoin can be used at a lower cost compared to fiat currency. The transaction fee is still quite high (median fee stands at around $10 even now), but it is possible to get the payments confirmed in 4-5 hours even if you pay a fee of less than $1. For large purchases (such as Tesla Model S, which costs >$80,000), paying in Bitcoin can be more cost-effective, easy to process and safer compared to more traditional forms of payment.