This one promulgated doubtless by the folks who think that Power Tower has rendered Demon Drop obsolete.
DD occupies one of the smallest footprints of any ride at CP, so even if CP had a space problem (insert standard disclaimer here) DD would do little to remedy that.
Secondly, DD is 131 feet tall. I don't have stats on the height of the ceiling at MOA, but my best recollection says that it's probably about 60 feet.
Finally, although Valleyfair is less than a half hour from MOA, they got a Power Tower this year. If you're pulling out DD because of CP's PT, you're certainly not going to put it into a park that has one.
PS. The Magnum is not sinking.
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Duane Cahill
Coming soon to an amusement park near you.