At the moment, for "normal euro/dollar" businesses, yes, I'd use fiat for pricing. It's making less and less sense to bother with fiat, in more and more countries, tho.

What might make sense, is to start normalizing the sight of Satoshi, by listing the Satoshi-equivalent on your bills and price tags, so that people start to get a feel for what things cost. Sort of the way they listed EUR/DM, prior to introducing the Euro 💶 . Would also allow people to compare prices, better, across the various currency regions.