Personally I don't see why many business wouldn't accept bitcoin as a payment form. I think by adding bitcoin as a payment form it makes your business a bit more diverse in some ways. I recently helped my dog groomer set up a little stand with a bitcoin QR code to be able to accept bitcoin from her customers. This kind of set up is such a good idea in my mind. Helps you diversify your payments into an investment as well.
Indeed. It will make your business a little unique. Adding bitcoin as a means of payment will give you a better security. It will also avoid chargebacks. If i have my own business in the future, I would do it. Accepting payments with bitcoin is currently a great move and can earn more profit from bitcoins. But, you must also be ready and have a plan or strategies whenever bitcoin price dump because if ever you don't have, you might lose your money on it.