Versatile is the name of the game.
I believe the more you learn about the richness that onions add to our lives, the more you, too, will desire to "count the ways".
The versatile onion is often baked, boiled, braised, broiled, fried, grilled, roasted, or sautéed.
Layered as they are, once cooked, onions are easy to hollow, allowing for interesting stuffing possibilities.
Onions can be used as a thickening agent for curries and gravies.
Sometimes onions are pickled in vinegar and eaten as snacks.
Onion chutneys (onion relishes of a sort) add unique flavors to meals.