I probably place too much emotional importance on my planner. But I think there are many people who feel as strongly (or maybe even more so) about their planner as I do about mine.
Filofax users tend to have a strong attachment to their Filofaxes (and if you don't know how strong, take a peek over at Philofaxy.com!) I think one big reason why we love our Filofaxes so much is because everything about them is our own choice: we choose the binder size, style and color, and every single thing that goes into it, or not. We aren't stuck with a bunch of pages that are useless to us. If we don't like the diary format, we change it. And if we don't find a diary format that suits our needs, we can even make them ourselves and put them in. Because we have chosen everything about our Filofax, it becomes a reflection of the user's personality. You can tell a lot about a person by looking through his or her Filofax!
Another reason people become so attached to their Filofaxes (or any other binder system) is that the binder stays with us year after year. Bound-book planners are finished at the end of the year and put on the shelf. But a Filofax can be your daily companion for many years. It's hard not to become attached to something that helps you with every aspect of your life for years on end!
Another brand of planners that people tend to become very attached to is Moleskine. I admit it took me awhile to understand the appeal. It's just a black cover. The planner formats are very minimalist. There's nothing fancy, no designs. It's just a basic framework.
But therein lies the appeal. The Moleskine planner is a blank canvas, and the planner itself fades into the background. The user is free of constraints and can use each page for writing, sketching, planning, or anything at all. The pages contain (almost) only what the user has put there. The result is that the pages of the book become an expression of the user's ideas, thoughts, and life. When we look into the book, we see only ourselves. The book becomes a part of the user. No wonder so many creative types love Moleskines--it's easier to express yourself on a blank canvas than to work around pre-existing designs.
What about you? Do you have an emotional attachment to your planner? Or is it just a time-management tool?