These coasters do look really cool, if only those smaller roller coaster manufacturers and theme parks would buy them. Like Zamperla and Cypress GArdens, a small roller coaster like that would fit perfectly in their line-up.
I haven't been on many big coasters yet so some of my choices might be weird.
1. Incredible Hulk
2. Rock N' Roller Coaster
3. Expidition Everest
4. Space Mountain at the Magic Kingdom
5. Big Thunder Mountain Railroad at the Magic Kingdom
6. Hurricane at Santa Cruz Beach and Boardwalk
7. Okeechobee Rampage
8. Swamp Thing
9. Primeval Whirl
10. Fiesta Express
I've never ridden these type of coasters before and they look really cool to ride. IMO they would fit perfectly at smaller parks like Cypress Gardens and FunWorld.
IMO they actually look pretty awesome. It beats riding the Dragon coaster and IMO it is the most boring coaster ever! Here's the Dragon.
http://p2.rcdb.com/picmax/beech-bend/dragon3.jpg
How come many Electric Spiral Shift Coasters have closed? If you don't know what I'm talking about here are some examples.
http://p2.rcdb.com/picmax/cedar-point/jumbo-jet1.jpg
http://p2.rcdb.com/picmax/alton-towers/new-beast1.jpg
http://p2.rcdb.com/picmax/busch-gardens-williamsburg/glissade2.jpg