Though true, it's easier said than done. Personally, I make music - though it's what i really like to do it'll probably never pay my bills. On the other hand I'd love to learn ruby on rails - without any developer background...unless you count FileMaker. After work there are only some hours to cover those interests, which are certainly not the only options and it's tough to figure out what to prioritize. In my opinion that's the real problem: Options. It may sound very general und superficial but there are so many things of interest, it can be overwhelming.