I'm not convinced the hotels just don't buy the Bibles.

If it was an actual person going around providing all the bibles wouldn't they have to book all of the rooms, surely that would mean that some rooms didn't get a Bible, because they weren't free at the time. But you never see that, you never see a hotel where just one of the rooms has a Bible. It's either all of the rooms, or none of the rooms.

I think it's probably just hotel policy to have Bibles, and it's been like that for years, and now no one really cares anymore but they've still got the Bibles so they're still in the drawers.