Okay, we can analyze this to death, but it's really not that big a thing. Dru would probably be with Spike, wherever they chose to lurk, but she would still be wanting to be as close to "Daddy" as he and Darla would allow.Giles did burn it down. The point I was making was that Dru was happy to live there despite it not being a luxurious mansion.
What would you think of bringing Wes in to stand in for Giles while he is away in England? Giles leaving Buffy all alone in the condition he knew her to be in has always irked me. With the other show canceled, he would have been available, and, with Angel already there, he might actually have a legitimate excuse for showing up.