It has been almost a year already since I decided to stop using facebook. Tell you what, It feels great not seeing all these showbiz personalities, the faces of these stupid politicians, the drama etc...Would you quit facebook?, just try it and I assure you of one thing and that's "Reality".
You can adjust your feed to see exactly what you want.
Let me know when there is an alternative to FB for keeping in touch with old contacts...
For old contacts I have ICQ.
Many people already do not know what it is. Also on a par with Facebook, there are many social networks, but facebook allocates a global level - it unites people from many countries, which is its main advantage. The same Google+ and close did not approach Facebook and it is unlikely to do so ever.