I still don't get it, but B&H Photo/Video do I guess (or at least they think there is money to be made). They (reported to be the largest photo and professional audio/video retailer in the world) have a separate section in their online site for "Podcasting Solutions" and their most recent catalog has a whole page devoted to products for podcasting.
I am going to New York on holiday tomorrow and hope to check out their store sometime when I am there.