There isn't a rational way to value "thrill" - each person has a different thing that gets them the thrill. For you, maybe increased dexterity or knowledge is

There isn't a rational way to value "thrill" - each person has a different thing that gets them the thrill. For you, maybe increased dexterity or knowledge is good, but for another person, that's downright boring. One other way to "value" thrill is whether it is legal or illegal, whether it damages other people or just a single individual. In terms of pleasure derived, you can't really say "this is useless entertainment" vs "this entertainment makes you smarter too so it's better"