If someone's experience with frisbee were being forced, day after day for many years, to throw a disc through increasingly arcane set of hoops, and God forbid they try to throw it to another person, then you'd have a lot of work first explaining to that person how frisbee can be fun.

I think the implied question is: why do people care enough about prime numbers to pay people to research them?

We pay people to play sports because we enjoy watching them do so, but that argument does not hold for maths - so your rhetorical question does not answer the implied question, I think.