As a counter point, everyone I know is on Twitter and uses it actively, but very few are on Facebook.
In fact, we sat around a table earlier this year and were chatting about a piece of news that mentioned some exclusive content via Facebook, and realised that none of us had access. And that was fine by us, we don't really get what Facebook is for, and we just went back to talking and continued some of the conversations next day on Twitter.
>we don't really get what Facebook is for, and we just went back to talking and continued some of the conversations next day on Twitter //
I suspect this is just smack talk. Facebook does everything that twitter does and about a million other things too. You can tweet on Facebook, aggregate tweets, re-tweet (they call it share). Just that the eco-system around Twitter, like Twitpic and such, is integrated.
I'm the opposite of what you claim to be. I use Facebook but I can't understand Twitter. I've tried using it and have several accounts but beyond being a newsfeed like Facebook's walls I can't see the attraction (except of course that it happens that your social network use Twitter as opposed to some other medium).
I guess it comes down to: Is more more, or is less more?
Twitter just fits in comfortably with how myself and friends operate and if Facebook does that for you then fabulous - everyone gets what they want. No winning over necessary.
In fact, we sat around a table earlier this year and were chatting about a piece of news that mentioned some exclusive content via Facebook, and realised that none of us had access. And that was fine by us, we don't really get what Facebook is for, and we just went back to talking and continued some of the conversations next day on Twitter.