In my opinion, absolutely!
Just slip one time walking around on the top of your camper to sweep off the leaves and sticks from a weekend trip and you'll get them... quickly!
Even worse, get a limb caught under the seal when the slide closes completely and tears the seal. While having it replaced for a grand and while it is being repaired, you'll just tell the dealer 'while you are at it, put toppers on".
Doug and Becky Ridgeway
2014 Blue Ridge 3600RS
2014 Ford F-350 CC 4X4 DRW 6.7 PSD