Re: Can you track the comic source?
They may have also reprinted because when Prey was rumored to be the story line influence, people were asking astronomical prices for their issues, because it wasn't a "known" story before. I think ebay had the single issues for hundreds of dollars back then.
Alot of demand equals DC reprinting volumes to maximize their bank accounts.
And having Hugo Strange be a main antagonist in Arkham City didn't hurt either