Actually there are tons of good snowboards in the mid price range. I think the market is flooded with mid-priced boards and there's not much in the way of high end stuff.
Just looked at my favorite place to buy boards, and you can get a good name brand all-mountain board for $199... I'm not sure how much below that I'd go.
Thanks for the reply, just getting a good idea of the price range and brand that people go to. That helps a lot!