Breakfast Epiphanies

Toasters aren't posters
That sit on your wall.
They're science, an appliance
All white
Quite cool.
They toast your bread
(Occasionally just right)
But often set boundaries
A little
Alight.
You put it on five
And it comes up ten.
Or barely does anything
So you whack it down
Again.
But why do I persist?
I hear you utter.
Well there's nothing as nice
As a slice
And butter.