Accepting bitcoin is always good idea. If you run a service and people are willing to accept it via Bitcoin then this is good for you. I plan to have a car showroom and put bitcoin there as payment method. Which would make me more profitable than Fiat cash money.
If you don't care about Bitcoin's price in Fiat terms, then there should be no problem accepting the cryptocurrency as payment method. But most merchants and businesses need to pay their bills and several other costs which can only be paid in Fiat. You can't sustain your business if Bitcoin goes all the way down the drain in an instant.
For this and many other reasons, Bitcoin acceptance will remain low for the foreseeable future. The only way this would change is if the world begins relying on Bitcoin as a standard unit of account. But everything still moves around Fiat, so the odds of this happening are very slim. Hence, accepting both Bitcoin and Fiat would be the only way to go. Just my opinion
