I know that, when I read/see a surprising or exciting twist in a story, I get a thrill of excitement and delight; if I knew it was coming, though, it's replaced with, at best, a duller sort of "yep, there it is" sensation. Knowing that I've missed out on that thrill is upsetting.
Relatedly (because I have actually had people argue with me about this before) I really don't get why so many people (like these researchers) feel the need to tell me that those sensations I just described are invalid or imaginary.
I know, atleast for me, it can help influence what I should consume when given time constraints.
[0]http://pages.ucsd.edu/~nchristenfeld/Publications_files/Spoi...