I was having a look at the new catalogue and this stood out. I checked previous posts for this product: some were cheaper, some were not. If you're old fashioned like me and actually walk into a store to buy things then this looks like a good deal. Add on $4.95 if you want it via mail, but then it would be cheaper to get it from Amazon or, as Russ notes below, Newegg.
The $14 Dell WM126 Wireless Mouse might also be worth a mention?
Great price for local. Managed to grab one of these from Amazon last month when they were $38.
Pretty quick at 290MB/s read, though write is only 40MB/s. Build quality is great too.