During the course of events my players happened on a droid repair shop (the owner, who owed them credits, was kidnapped). While there a player who is playing a droid that is obsessed with upgrading himself was asking if there was anything available for him to use for upgrades.
Now, I try to find reasons to say "yes" to players, but I'm not sure what would be available for him as an upgrade that wouldn't provide the player with something the rest of the group would have access to. The only thing I can think of right now is to say that there is nothing here that is any better than what you already have, but you can collect a few spare parts in case of some unforeseen "accidents".
Background:
This shop is owned by a zabrak slicer who is an associate of the NPC the players picked up earlier (she stole something from a crime lord and he wants it back... badly). This crime lord started going after any known associates trying to get to her (she needs the slicer because he's the only one, that she knows, who is skilled enough to crack the code of what she stole -- a droid brain with, she hopes, coordinates to a vast treasure).
(Note that I didn't expect to have this type of character in my group or I would have planned it differently -- he joined after the game had already started).