I wonder what facebook will do when a significant portion (let's say 10%) of it's user base has passed away. Is the data of a past life still worth something t

I wonder what facebook will do when a significant portion (let's say 10%) of it's user base has passed away. Is the data of a past life still worth something to them? Will they spend the money to keep it? I bet that anthropologists and sociologists would love to get their hands on historical data. Also, I suppose the data of a famous person might be worth a lot in 50 years, like the publishing of a president's diary. I can see it now "See the hidden facebook messages of Lady Gaga"