I dont think thats a flaw at all. Dude, look at the people who take boring jobs that pay the bills and see their excitement level towards life itself 10 years later. :\
I dont want things that are ALWAYS challenging, or so hard as to leave me frustrated an unaccomplished at the end of the day. But I dont want an endless monotony of crap.
Luckily I am in a position wherein I can choose my jobs.