Yeesh. Obviously this is a pirate but an interesting pirate nonetheless.
Here, we have an auction for a "Rockman World Collection," a multicart presumably containing RMWorld 1~5 alongside a few other games. Indeed, such an item is tempting; who wouldn't want to own all five World titles in a single cart? For $9.99 plus and extra $15.00 in shipping, a pirate of this caliber just isn't worth it.
I say wait it out until an official RMWorld Collection comes to fruition. Who knows, maybe we'll hear from MegaMan Mania once again.