The "Black Hole was one of my fav rides at Alton Towers along with "Thunderlooper".
I wish AT kept it running and added more lights and effects, e.g. while going round the lift hill "lasers can bounce off mirrors" and have a big smoke machine at the top of the tent facing downwards.
X: No Way Out at Thorpe Park is another dark ride which suffers badly, give it more lights and lasers etc to make the ride more enjoyable.
Alton Towers should build a coaster like below and put it in the "Old Black Hole" tent.
Bobsled Coaster: "Die heiße Fahrt!" - Wild- & Freizeitpark Klotten, Germany