Harvey Norman offers the Linksys RE3000W N300 2.4 Ghz Single Band Range Extender for $48. This is a $20 price cut from their last sale price of $68(webcache.googleusercontent.com). The next best price(pricespy.co.nz) for this product is $72 so a big savings.
This Wi-Fi extender is useful to extend your Wi-Fi signal where it is weak within your house. Reviewers on Amazon give the product 3.5 stars out of 5 based on 237 reviews(amazon.com).