So many? The have been a total of 10 Arrow suspended coasters, only 9 are operating (The Bat- which we should all know about), and of those, 3 are not located in the US.
The Big Bad Wolf is by far the best suspended, but ID is terrible compared to TG. Both coasters have their place in each park, an exciting ride, but not a thrill ride. TG serves many of the younger patrons of PKI. Taking this ride away would be taking from the family atmosphere that PKI is directing itself to as well as taking away from the Hollywood theme since this ride is very heavily themed.
And as far as PKI settling for a ride that is lame, the ride was already planned and being built before PKI took ownership. If PKI wanted to change some od the aspects of the ride, they did have an opportunity to put more $$ into it, but obviously they wanted to spend more for the theming at that time.
I will agree that TG does serve it's purpose for the younger riders. It does provide quite a thrill for them I am sure. And the theming is quite nice. I just wish they PKI could have made it a much longer ride.