My $0.02 about skyrides:
At BGA, I made use of theirs to get from one end of the park to the other on a day where I was getting tired and didn't want to walk the whole way across. I was in a coaster mood and Montu is really separated from the rest of them. Their skyride gives great views of the park.
Here in Toronto, there is one on Centre Island. It is an out-and-back, but is a nice chairlift style ride going over Centreville, Far Enough Farm, and the parkland. A nice relaxing ride.
The CNE here still has theirs in storage...it was dismantled years ago, but if you drive by on the Gardiner Expwy, you can see the cars and pieces of the towers.
At Indiana Beach, once again a great way to cross the boardwalk...but the two tiny steel bars that serve as "restraints" were a little flimsy for my liking. I wouldnt want to put a kid on this. That said, the skyride was a great photo opportunity.
These skyrides and transportation rides might not be thrilling, but for me they are a nice addition to a park.