Are you over-paid? No? Are you bored of your job? Yes? Then you are perhaps being over-paid.
Consider this ...
[I]n the late 1950s, Leon Festinger did a famous series of experiments in which he asked subjects (undergraduate students) to do tedious menial tasks (such as sticking a set of plain pegs into an (sic!) plain board). Here's the rub: some subjects were paid well ($20, a lot of money in 1959), but others, poorly ($1). Afterward, all were asked how much they liked the task. People who were paid well typically confessed to being bored, but people who were paid only a dollar tended to delude themselves into thinking that putting all those pegs into little holes was fun.
I love my job! I think it is time to ask for a pay revision :D