I dunno, but when I was a kid and watched The Price is Right I never could get the price of it because they didn't sell it in the south wayyyyyy back then. Maybe they only sold it in San Francisco at first.
It's a case of location, location, location. San Francisco, specifically the Mission District, happens to be where the original family-owned pasta company that created Rice-A-Roni had set up shop. I give you this from the Official Rice-A-Roni website (www.ricearoni.com):
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