Sometimes booklets are superfluous. But a lot of DVDs have IMHO real shitty menus where they show you a snapshot from a chapter with no other info; and they show just 4 at a time; so if you want to jump to somewhere in the middle of the movie you have to maneuver through several screens worth of crap to do it.
With the stops (and meaningful titles) in hand, I can look at a list in one glance, see that aha it was chapter 20 where the car chase was, and jump directly to it without navigating the menus.
In fact I find the majority of scene access menus to be crap (at least in the 100 or so movies I own.