i'm also a scrapbooker and i'm on a bunch of design teams and even do work for a manufacturer, BUT.....
i have not wanted to scrapbook in SO LONG b/c of knitting. i've just been basically keeping up with my assignments and not doing anything more for myself.
i'm torn - i love both, but they're both expensive so i just keep flip flopping a little. at least knitting you can buy the yarn and have a project keep you occupied for a while longer!