Depends on your locale. I bought fish for a family lunch of twelve today. Six dozen fresh sardines, 24 EUR. It would have costed more to order hamburgers or pizza for twelve. YMMV.
What do you mean? Fresh, lightly grilled sardines (with boiled potatoes dipped in their grease) is far and away my favorite food. Maybe you only tried them canned?
Indeed. Or, actually, I've only smelled them as the can is opened; I don't think I've ever actually eaten any. But I understand that lots of people like sardines -- it was suppose to be merely funny. :)