So, the change is 1000% positive because people now contact you personally about facebook events? I don't really get it.
Facebook is a tool, and it can definitely be helpful as long as you're in control. I only use it as an extension of my email (because of facebook some of my friends only check their personal email once every few days). I never post things, like things, or comment on things. If I were to delete my account now, I would simply lose a lot of contacts that I don't want to lose.