Since your profile says Central FL, well that's me too! And Lowes and HD, and Walmart have some. As I was just in all 3 of them yesterday buying everything I could for my babies
I'd be interested if the entire medium was sphagnum. Some growers will do a quick repot in sphag prior to shipping. Oftentimes I have found the "real" medium to be a deteriorated something else.
Nick