Prices for both games are a little bit all over the map...but I think if condition is equal (shopped out, nice playfields, nice cabinets) ...RS might be worth $100 or 200 more. ...but it seems like Shadow keeps inching up in desirability and price - so maybe they could be considered equal these days. It's pretty close!
i think road show would be easier to sell if you got in a situation where you HAD to sell the machine. but i would take either one equally. road show is fun, my local bar has one in perfect condition. and the shadow i played as a child and i love the theme of it and liked the movie