I think YOUR pricing is about right..have you searched them out on etsy/ebay?
just do not forget the following info from Penny's website!
Frequently Asked Questions
Making bags for resale?
Can I make your tote bags for resale?
Yes, as long as you are making them by hand on your home sewing machine and the bags are not mass-produced. We also request design credit when selling the bags. This can be a simple as a card included with the bag that says "Designed by Quiltsillustrated"