Amazon offers the Samsung 2.2-Channel Bluetooth Soundbar, model no. HW-J250, for $97.99 with free shipping. Outside of the mention below, that's the lowest total price we could find by $10. It features 80 watts of RMS power, built-in woofers, and a wall-mount kit.
A close price: Fry's Electronics has it on backorder for an in-cart price of $99 with free shipping. (Search for "HW-J250" to find it.)