[capisce]

A job being boring is just one of the reasons you might get paid to do it. Another reason could be that it's hard and that you are one of the few available for hire with the necessary skills. Then it can still be all fun (for you). I think the problem and negative spiral occurs when people have to take boring work just to pay the bills. Boring work leaves you mentally drained at the end of the day which keeps you from learning more or working on spare time projects in order to get more interesting work.

The challenge is getting into a positive spiral instead.