Rewind. Then please watch again. The best stunts deserve to be watched multiple times. extreme skiing videos often capture the action so that it can be enjoyed over and over again.
People watch extreme ski videos for different reasons. Some people are extreme skiers themselves. They aspire to do great tricks, and watching those tricks happen provides a template for them to follow. By seeing the way that a trick should turn out, people may be able to do the trick better themselves.
Some people watch skiing videos because they are mild skiers. They enjoy skiing, and they can definitely appreciate the skill that it takes to do extreme skiing, but they would prefer to just watch great tricks. The only way they will ever experience extreme skiing is vicariously, and that is ok.
Other people do not ski at all, but they can still be mesmerized by a great skiing video. Watching somebody pulling off awesome tricks can still grab their attention, and they respect anybody that would risk their neck and land a move that they have never seen before.
Of course, extreme skiing videos also include wipeouts. People always enjoy seeing other people fail in epic proportions. At the very least, a skiing video provides entertainment for any audience that can appreciate extreme sports.