Maybe the red will look better in person cause there are a lot of reds on the playfield and plastics set.
Also, when looking at the cabinet from a distance maybe the Orange may be better, but when standing in the playing position maybe the red rails might look better against the playfield.
Orange is a very hard colour to like. I am thinking orange will look very "gawdy" when people try to consider replacing the red ? Time will tell.
Also, very thin velco only works extremely well for the mirror blades if u want them to be very easily removable so u can lift the playfield after removing them which is easy and efficient if placed on with very thin double sided tape or thin Velcro. It's not often u ever have to lift the playfield on a new Stern etc. Some cabinets are just so tight yet others have heaps of room as Swinksy said.