I like using original parts including "soft goods" when it's in good condition.
Take seat upholstery for example. Long exposure to sun and/or heat can bake out vinyl, rubber even hard plastic.
My verts rarely sit outside in the sun. Even the original dash pad is flexible, crack free and looks almost new. Point is the vinyl seat material isn't baked out and fragile. Why not use it? For judging you may get points deducted because the driver seat looks newer...so be it. Guess to me it's like replacing all four tires when only 2 are needed.