I come from one of those old school, multi-generational JW families, so my family has both the Aid and Insight book. I remember growing up my dad always used the Aid book to prepare his talks and the Insight book mostly just stayed on the shelf almost unused. I'm guessing he preferred the Aid book because he was familiar with it and more used to doing research in it. I never really read many of the Society's books from cover to cover, so there's no way I'd have done it with the Insight book.
GGG, so true on the Barnes & Noble thing. That section of that bookstore really did a lot to inform me on the topic of Christianity and religion in general, more so than anything I learned in the hall ever. If the Society actually engaged in real bible study (even if only in a conservative Christian context) maybe more people wouldn't be so bored and tired of their "spiritual routine" in general. But then that might lead to thinking, and we can't have that .