I find myself using Facebook less and less. It's become a morass of mind-numbingly useless status comments (I don't care what you ate for dinner, that's what Twitter is for), constant barrages of invites to the latest farmville or candy crush flavor of the week, a breeding ground for disinformation and/or hoaxes (for the weak minded who can't bother to check facts before liking and reposting things)... Generally useless, other than for the tiny glimmer of utility when I want to get in touch with friends or relatives I don't contact on a regular basis.
Add in the "auto play" videos and targeted ads that keep being mentioned as "coming soon" and I am even less inclined to spend any time on FB. And, every time a lazy company wants me to "go like us on Facebook" to get their info, rather than a real website, a puppy dies. You want my business and want me to know what you do? Build a website, put your info there, and do NOT require me to link to Facebook or tell my friends about you...
Will Facebook be close to dead by 2015? I doubt it, but I truly hope so! The mad scramble by companies to actually figure out how to advertise and provide product content, rather than rely on likes and social media spam, would be worth the price of admission. I'll bring the popcorn!