Boomorgon was one track that I liked...
As for the Planet Ben, it was a bad example (and I'm not comparing them as such) but it was the first one that came to my mind.
About climaxes, they are not necessary because I like jazz, psychedelic rock and other improvised music that just wander around without climax. But I just somehow don't like Derango. May be that I haven't listened to it enough...