Welcome to the Jungle....
There is a good chance that big box stores will have edible type bananas for sale in your area. I know they do sell them in ATL big box stores and nearby in the summer. 25.00 or less depending on size...this includes Walmart.
Check greenhouses in your surrounding area and Craigslist.
You could also buy one from a member of this forum in the springtime once they go up for sale. Some take paypal.