[knowaveragejoe]

Not sure why this is downvoted. The vast, vast majority of businesses accepting bitcoin for goods themselves are immediately converting to USD(or whatever) to cover their own overhead. Their prices are tied to the USD.

[gonzo]

It's not just "overhead". The reality with BTC is that if you accept BTC, you're responsible for the basis of the sender, which is impossible to know.

Converting to fiat currency eliminates that risk.