I was talking about this with our circulation manager(who recalled using flannels less than successfully in Bible classes long ago) and realized that what a flannelboard is, at least to me, is a bridge to storytelling rather than reading the book out loud. It offers a visual, a way to tell the story and yet still put pictures in front of your audience.
Every Halloween for "The Big Pumpkin" I use wonderful flannelboard pieces (which have magnets on the back, BTW) that were made for me long ago by a skilled assistant. They're fantastic, as you will see.
But it's not just her art that brings the story to the children. It's me, telling the story. Using silly voices--love doing the Vampire to sound much like "The Count" on Sesame Street. Having the children "pull and tug" along with me--was amused to realize that I automatically stand in ballet 4th position to brace my feet for this--and chorus along with "and the pumpkin just sat!"
It's the storyteller that makes a story special, whether you do it with fancy props, a magnet board, a book, or simply in what came be the most powerful medium of all, your own voice.
So take joy in this, and every story you tell, no matter how you tell it!