The more payment methods, the better. Although, I don't think that anyone is going to buy with bitcoin currently. You realize that he/she has to pay product's price + ~$7 in order to get the transaction quickly confirmed. If the fee was much lower I would suggest adding it.
Also, people or investors will doubt using their Bitcoin as a mode of payment at this moment due to the increase in its market value. Ofcourse holding will be more profitable.
But still, doing so depends entirely on you. Transactions will become faster but, are you willing to receive payments that will be converted into investments? I mean, if you will convert it to fiat upon receiving, what's the use of using bitcoin right!? So more likely you are eyeing for investment purposes such that its price could go up, meaning, bigger profit but the problem is, what if it suddenly fall down? How will you cater the needs of your business if that's the situation? To those who are planning to start a business to accept cryptos, know your goals.