Cyclery, Inc. via Amazon offers Prime members the Crank Brothers 19-Function Multi Bicycle Tool in Gold, model no. 35019, for $18.99 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.58.) That's the lowest total price we could find by $7. It includes a variety of wrenches, screwdrivers, and other tools.

Of note, it's also available in Silver for a buck more.