Wonder why only two were built in the world then...
Oh yeah, because it's unreliable (and that's an understatement)... And I like Slammer, but I can see why no other park would touch the ride type with a barge pole, hell even S&S called it quits...
No matter how good a ride may be received by guests, or have an unique experience or whatever, there are definitely obvious trends as to why certain rides do catch on (however briefly, you can see Topple Towers for this, which after the issues of Dollywood's, died a death, although were popular on Mainland Europe) or just die a death (Huss Jump2 and Sky Swats) due to technical failings and the costs that come with them...
Just because it would be an unique experience, does not mean the park (especially Thorpe and it's history of downtime on EVERYTHING) should get one...