12 years ago when we special ordered our rig, I requested the ladder and roof rack be included, but not installed, "just place all the pieces inside". I didn't like how cheesy they are (and get worse with time) and how poorly they are installed with caulk and such. The fewer holes, the better.
12 years later and those parts continue to take up space at home. We don't have a slide out so no topper to brush off. At home I use my 10 foot free-standing ladder to get on the roof for maintenance. I have not yet had a reason to get on the roof during a trip.
Here is our rig....ladder & roof rack free.