We were there in May, and $20-25 for a dozen in a fancy restaurant is the going rate.
Paid about the same, maybe a bit less, in the Florida Keys the August before.
Both places they were sensational.
In Nawlins, they invented Oysters Rockefeller and a grilled oyster with garlic and seasonings that are just nuts. Those are some meaty, tasty oysters.
I know the ones up north might be a bit sweeter from the colder water, but they're also a bit smaller. The ones from the Pacific Northwest are like giant pillows, and have about as little flavor.
That's the extent of my culinary experience with those pearl spitting crustaceans.