Just to de-rail this thread some more...
The Tower of Terror is one of my all time favourites, it's just a classic for me, AND i'd totally support removing it tomorrow because:
it's ridiculously loud, especially when compared to any modern ride
it divides the park and the white tin tunnel is a horrendous sight
it doesn't do what it advertises anyway (go 160k/ph and 115m)
It's nearly 21 years old and well into its twilight years anyway given the current state of electronics and ride systems
Since Dreamworld are so into pinching my ideas i'll throw them another one i've already written about - scrap Tower of Terror & Giant Drop, keep the tower, and install a Sky Jump (Falcon's Fury/Ikaros) - then you'd actually have a modern thrill ride that would be as terrifying as Rivals, would market well, wouldn't cost a whole lot to retrofit and could be integrated into the Rocky Hollow space.