I always had carpet mats until my 07 Expedition came with the soft rubber mats. They do show dirt but can be taken out, scrubbed with Simple Green, water and a coarse brush, then dry in under an hour in the sun. Dry "summer" grit can be vacuumed out even easier. Now I'll never have a vehicle without them. They are what I call "rugged luxury".
My Overland has the Saddle Black interior and I ordered the soft rubber Mopar mats. They are a very dark grey, basically black and match the interior well. They were about $85 on line including the rear passenger compartment that goes over the center hump. They match the rear cargo mat that came with my vehicle.
Here they are, on sale: http://www.allthingsjeep.com/mopar-j...2212172ac.html
I couldn't find rubber mats for my son's Exploder so I got him the Weathertech mats that are laser fitted. They are slippery, tend to move around and just not as nice as soft rubber.