The main point I think is if you are doing deals with international customers... bitcoin will be the most convenient way of payment you can ever ask for as a businessman. It is a lot faster and much safer, I believe. People can scam you with fake bank transfers but you are able to see in the blockchain the transaction.
Besides, bitcoin has also become something of a marketing tool nowadays. Businesses are using bitcoin to find the community and invite them to try their products or services.