Argentines dont like fish. They really dont like raw fish. Except, maybe, ceviche.
Even carpaccio, which, of course, is Italian, is almost never seen here.
Dont even think about eel, or sea urchin eggs, or octupus sushi...
the average argentine diet is a pre-teen palate- bland, and mostly bread, cheese, and meat.
this has been changing, I have seen large changes over the last decade, but the vast majority of restaurants here are still pretty much the same as they were in 1960.
dont get me wrong- I love faina, and fugazetta, and lomo and chori's and provelta and pasta and papas fritas.
but I also like salads and vegetables and seafood and innovative cooking, along with spicy food.
Most of the authentic foreign food restaurants, however, dont do very well here. There are a lot of peruvian restaurants, but they tend to water everything down for the argentine palate. Same thing with mexican, or sushi places- they make what sells.