"You and your bowl fetish", says justom. He's just mocking me, but there's something to it. Bowls and plates are equally practical, but bowls are... friendlier. A plate is held with the fingers, an excercise in tension. A bowl is held with the hands, even cradled. The shape is natural, weighty, rounded. A shape for containing, enclosing, both decorative and protective, where a plate is just a barrier between the food and the forces of gravity.
There are probably worse fetishes to have. :)