signals3 of fellow Transformers fan site TFW2005 reported sighting Hasbro's Masterpiece Optimus Prime at a Toys "R" Us in Springfield, Missouri. Masterpiece Optimus Prime is Hasbro's version of Takara Tomy's MP10 Convoy, and is a Toys "R" Us exclusive.
Read about the sighting at TFW2005 here.
Post your own sightings of Masterpiece Optimus Prime here.
Also, you can view The Allspark's gallery of Masterpiece Optimus Prime here.