I think it has more to do with wanting the bread warm in any way ... so that you can melt butter on top of it. Nothing like fresh baked bread and melting butter over it. The next best thing is to take cold bread, toast it and melt butter over it.
I grew up poor and I remember being a kid and craving melted butter on warm toast but we seldom had any ... so we often opted to using just lard instead. Same sensation but the taste wasn't as good.