If you have an Asian community where you live - find the Asian market/store where they shop. You'll find the best price and what they use ... and they know rice cookers. Of course, I assume you're looking for an electric rice cooker.
If you're looking for a "manual" cook it on the stovetop thing ... just about any aluminum pot with a tight fitting lid.
"It ain't what you don't know that gets you in trouble. It's what you know for sure that just ain't so." - Mark Twain