Nobody likes 'em. Which would you rather be stuck with?
Buttered popcorn is the most disgusting thing I've ever consumed, but if one toasted marshmallow pops in my mouth, there'll only be a bit of gagging.
editga: I'm talking about jellybeans. Buttered popcorn and roasted marshmallows are actually delicious, but when condensed into a small bean-shaped sugar lump, they taste like death. ^_^