Ages 3 and Up report over at TFW2005, that there is a knock-off Metroplex in the pipeline from a company new to making Transformers fakes.
"As many know, competition in China is fierce for KO companies and to compete against eachother is commonplace. I have receintly been contacted by a different company than the first who is also doing KOs of G1 figures. Their first release - METROPLEX! I am told this is done is high quality and will come in a G1 style of box with styrofoam insert, instructions, catalogue and sticker sheets. I don't know what they will have for copyrites, this will be found out when they come in stock. The retail on this figure will be $124.99 US which I find is much more reasonable than $80 for a Dinobot considering the size and complexity of the figure. (a good portion of the cost is in the shipping as well)"
Don't forget that you can view galleries of the real deal Metroplex here at Transformers At The Moon, as well as the Japanese exclusive Destron recolour Metrotitan