I've been tackling this question from a particular angle for the last 6 months.

Depending on your market, accepting Bitcoin may provide a meaningful value add to your customers, particularly if you're willing to provide a discount to them. That's fair, because the processing fees for a bitcoin transaction or miniscule compared to any other alternative aside from cash.

I've created a couple marketing guides that will be helpful for deciding if you want to pursue this avenue:
http://bit.ly/btcmark1
http://bit.ly/btcmark2

I've also done extensive comparison between the major payment processors bitpay and coinbase.

If you have any questions about this avenue, fire me a message. Let's talk.