WOW!!! I'm beginning to see the signs of a crazy craze here, and I emphasize "crazy" because there is not only a lot of math and science that goes into building rollercoasters but construction safety and knowhow, as well. Unfortunately, there are bound to be some accidents, but in the meantime, I think rollercoaster enthusiasts will continue trying to create their own.
As for myself, I'll let the professionals whip me around and turn me upside-down, and go to either Disneyland, Knott's Berry Farm, or Six Flag's Magic Mountain; however, after having an unnerving experience with a seatbelt incident on Batman: The Ride at Magic Mountain a couple years back, I have become a little more cautious. Alas, even that terrifying two and a half minutes did not deter my love for roller coasters; however, I have noticed that ever since then, I have become prone to motion sickness. Ah well, that's what drugs are for.
And if I ever need a rollercoaster fix, I can always return to playing RollerCoaster Tycoon 3 from Frontier and Atari. I have to say, hands down, one of the best games I ever obsessed over. And not just me, there was a whole community that dedicated their lives to this game. You would not believe what people were capable of creating without seeing it for yourself, and this was way back in 2005. There are a ton of RCT3 videos but here are two of my favorites:
I could continue talking about rollercoasters all day, everything from my favorite coaster, which is the now defunct Déjà Vu from Six Flags Magic Mountain to "Rollercoaster!" the movie. But if you're a rollercoaster enthusiast too, and don't already know about the website called the Roller Coaster Database, you should check it out: www.rcdb.com