Disclosure: I love the sky whirl, and I would rather not see it (or any ride) go but, I don't disagree with why its going out.
The Sky Whirl has a good reason for its removal. First off, ***according to maintainence at the park***, the main bearing, where all three arms attatch to and pivots up and down from is badly worn. The park (before the announcement ever came) decided to remove the ride before this part went as opposed to putting tons of thousands into it. (thats why it closed early)
Add to that the regular High cost of maintainence since there are only 3 of these rides, and the low ridership that has been decreasing over the years. The park would rather replace it with a higher capacity and more popular ride in the limited space that they have.
SFGA is people, in fact a business, and the Sky Whirl just doesnt get the people in the gates. So as I will miss my beloved wheel, I understand why it has to go. Perhaps one day, we will see a new large Vekoma wheel.
As long as numbers stay high, and cost stays down, there really isnt any real reson why parks need to take out rides. I think the Whizzer is safe until it becomes a mega hassle.
Make sense?