I have a friend who's a real Briggs and Riley suitcase fan. He says he insists on using suitcase/luggage covers and he has the soft shell ballistic nylon "Baseline" cases, not the hard shell ones like the Torq. He says he simply does not want the ballistic nylon looking scuffed, even though these last.

I couldn't find a lot of discussion about suitcase covers. Does anyone here swear by them or is this an expensive add-on that is not necessary? (Specific comments about Briggs and Riley appreciated.)