Here's a great coupon, rare and high valued for $1/1 box of Gluten Free Barilla pasta printable.
I think that the price is actually quite reasonable compared to other brands of gluten free pasta. I don't recall the exact price, but I want to say it's around $2.58 per box. Random price, I know.
Lately lots of stores have been adding the Gluten Free Barilla pasta to their shelves. Locally, I have found it at the Oc Fareway and Sheldon Hy-Vee. I would think they're in the bigger Hy-Vee stores as well such as Sioux City and Sioux Falls. Also, I've seen it at some Wal-Mart locations. Have you found it at your local grocery store?