The crypto market is not stable as the market always goes up and down and the price of the currency fluctuates so investors prefer to invest in bitcoin for the long term. In business if you have bitcoin in such a situation you will get better results if you keep it for long term without taking any risk. When it comes to payment most people prefer fiat to buy things with cash, but it's entirely up to you. To get something good, people have to work hard. Go ahead with the plan and hold on to the bitcoins instead of selling them.
You can be different and it will attract customers to you. I do not know which region you are located at but if you are in a region that the government are not against Bitcoin, you can accept it for your business as it also helps in the adoption of Bitcoin because we need smaller businesses to start accepting Bitcoin since the bigger businesses are not accepting Bitcoin. You can accept Bitcoin and not lose because you are not thinking about selling now but hodling for Bitcoin to get to new highest price before you sell. There are many users that are looking for where to spend their Bitcoin and other cryptocurrency therefore if you provide a place for that to happen, you can make a money from the small commission or charges that you will be adding to the service that you are offering.