I bought that Kensington LiquidAUX unit over a year ago, I don't think Kensington's even making it anymore... I tried to find it again recently and couldn't find it for a decent price. I bought it for right around $40 as well, I think the MSRP was no more than $50. Now that I've found it again I'm almost tempted to pick it up from Amazon in case mine ever breaks or as a future gift.