You have to pay the 3 cent fee, while you dont have to pay anything when paying with a credit card.
So what is really a benefit for using Bitcoins, customer wise?
- the bitcoin economy
- sell goods worldwide
- services
- payment worldwide without borders
- receive money worldwide within 10min-1hour
- no thefts
- no downtime for online payments
- no advertisements when making a transaction
- only 1-3 steps to send money. unlike most payment systems