I think the only rides I didnt do this for were 7DMT (because it seemed like it was going to be just like BTMRR. It turned out to be much more tame.) And Soarin' because for obvious reasons, you can't get the real feel of the ride on video.
As for other thrill rides, I have watched EE ride videos dozens of times to try and ease myself into riding it and every time I make up my mind that I will do it, I chicken out at the last minute. I think the fact that there is a portion where I cant see is what troubles me because I am not sure what to expect. Even though, I honestly don't mind the backwards part. But not being able to see a ride video for FOP is preventing me from wanting to ride that too. I hear mostly that its just like Star Tours in intensity, so if thats the case then I will be fine, but its still a question mark in my mind depending on how elevated from the ground you are...