Re: Limits of coasters and thrill rides?
It's highly doubtful anyone -- any park chain, not just CF or SF -- will top Kingda Ka for the next decade or so. The price of steel has quadrupled in the last few years, significantly jacking up the price of construction and stretching out the number of years required to pay back such an investment.
As far as the theoretical engineering limitations, there's no reason a two thousand foot tall coaster couldn't be built. It'd probably cost a billion dollars to build, but it could be done.
I could see some crazy sheik in UAE deciding to top the record, or maybe some mega-rich corporation in Singapore or Shanghai (the same sorts of companies that try to one up each other for the highest buildings), but other than those exceptions, nobody is crazy enough/has the ridiculous scads of money to even attempt it.
What I would like to see is using mountain topography more in ride construction. Just watching those alpine slides on Youtube makes me salivate at the possibility. Imagine a true coaster built on a mountain side, negotiating a seemingly endless series of two to four hundred foot drops as it wends its way down the cliffs. Now that would be a ride I'd pay good money to ride.
Mike
R.I.P. Geauga Lake: 1888-2007.