Think about it this way: If you haven't upgraded your home yet, it's not just heat or cool air that's escaping -- it's energy and money that you are wasting.
It's more of it's gotta get there and I just gotta get it back and this is so cool because it's something I can touch and own and feel that's been in space.
Maybe it's less that people see Facebook as evil and more that the site just isn't as cool as it used to be -- partly because it's so popular and also because it's not the new kid on the block anymore.