On the downside a regular business can't price anything in bitcoins because of the deflationary nature of it. They would need to reevaluate the price every several hours.
Well there was something invented in the 1940s that can do that for you, called programmable digital computers, you may have heard of them.
I mean if you go to trader joes and want to get some cheap wine for 2.99 what would it be in bitcoin - "0.003746 and even less by the time you get to the counter, unless it's more"? I heard of them 'puters before. There're up to no good.
Most shops these days have a computer which has some accounting / inventory management software running on it. It can be easily modified to show the correct BTC or LTC value at that instance.