One of the great design aspects of Towers is that you can get up and personal with many of the coasters. From the Oblivion hole, the Nemesis pit, queueing above and around the Wickerman pit, Galactica swooping above the plaza (where I lost my phone through carelessness a few years back) and to a lesser extent queuing directly underneath the Smiler. Although I despise the thing to ride, Colossus at Thorpe is superb to walk around and view off ride. This makes the park quite unique as there's a spectacle for off riders and is something the park does very well.
The last thing I'd want is future projects built completely behind fences and cheap clutter with Danger of Death signs retro erected everywhere to solve a loose article problem.
This shows how well designed Nemesis, Air, Oblivion and Colossus are compared to the Smiler. They managed to create fantastic interactions between the ride and spectators whereas The Smiler just plonked the queue underneath the ride.