>>96183033
Partially because I don't want to be a complete cunt and say no ships, so making it difficult enough that they won't try and create a fleet of 500 jerichos. And partially so there's a reason that the ship is still available in the expanse which appears to be approximately 95% rogue traders by volume. And to pad things out a bit because I am a hack. Find out what's wrong with the ship they just bought if they don't get it out in negotiations, find a fix. Similar to how finding a drifting hulk might be - a quick check to see if it can be salvaged, and if so, what's needed to get it moving to drydock.
A standard gellar field is probably not terribly uncommon, though I'm mostly using it as an example. Damaged weapons, leaking life support, the crew are tau who are absolutely convinced that they're masters of stealth, whatever.