When I was initially looking at the Renegade I loved that interior, the look is on-par with many luxury interiors. However, I wanted the TH and I ended up getting the topography cloth seats. And although bark brown/ski gray seats are beautiful and unique, I realized they will only look that good for a short while.
I've had 2 cars with light interior and after a while it seemed just breathing on them got them dirty; the seatbelts, headliner, carpet, even the "Oh ****!" handles turned black. Though, the headliner for the Renegade is a newer material that doesn't seem as susceptible to grime as the old ones. The worst was when I wore dark wash jeans and the dye rubbed off onto the leather; the blue tinge never came out. I agree the dealership warranty is an absolute must because you will spend the same amount over the course of a few years on cleaning products and detailing. I would also recommend getting the all-weather slush mats just to keep everything looking pristine.
Congratulations and I am sure you will enjoy them, the seats really are classy and high quality. I would love to have the bark brown/ski gray combo to complement the Omaha orange of my TH but I personally don't want the headache, lol.