Well, remember that the game is set up for the general public, not total coaster enthusiasts - I'm sure that most of the GP would find a coaster with 7+ inversions to be very intense and nauseating! We wouldn't, but they would. At least it is realism in the game.
-------------
Po!nt of View: A different look at Roller Coasters.
http://www.crosswinds.net/~justmayntz/thrills/index.html