Don't forget the IG-88 that was moments away from taking over the second Death Star?????
On second thoughts....
It's really just a nerd problem and as a self confessed nerd it's not that much of a problem for me.
IG-88 looks like a single purpose piece of military (or paramilitary) kit so it seems a bit odd that there is one of his kind (whatever the colour) in a scrap yard on an industrial colony.
But then what is a slave boy doing building a protocol droid for his mother on a desert planet when she'd be better of with an ice-cream maker?