I don't enter quilts in our fairs because they all vear towards traditional bed quilts, and I don't make those. Most of the fairs also display the quilts folded, and my largest quilt (60 x 60) can't be folded. My other quilts are all smaller.
The bed quilts that I do have are being used. They have stains, wear, dog hair, and maybe some bleeding from the washing machine. It is more important for me to use and love the quilts I make than to keep them pristine all year waiting for the fair.
After a guild meeting where we were encouraged to show our quilts, I did enter the AQS Grand Rapids show. I'll have a quilt hanging there. I'm very proud of that! If the local or state fair creates a category where my type of quilt would make sense, I'd enter it there too.