Nothing really worth writing home about.
It would make a difference if this would be the place to buy hot modules or weapons, or even stuff that has been modified beyond good and evil, so something with severe drawbacks for example. Example: Standard Rail does 50 damage per shot, you engineer it to G5 to do more. Now here you might be able to find something that would be the equivalent of a G6 or G7 - limited stock of course. Or fly a rare mission for the pirates, making you wanted/notorious and get one as a reward. Rolls could be off the chart, G6 or G7, hot item, they need to ditch. But that rail might have a flaw that it might blow up and needs fixing.
So really, a proper pirate base would have much more significance than "just another anarchy system/station".