I am a relatively unhappy consultant. I have reached premium billing status within my industry, but seem to be offered to work on relatively repetitive problems

I am a relatively unhappy consultant. I have reached premium billing status within my industry, but seem to be offered to work on relatively repetitive problems that are anything but challenging. Also, although I've made a fair number of contributions to the ecosystem, the community that contributes back is quite thin and despite some positive press, I don't feel that there is hardly any impetus behind the open source ecosystem (full disclosure: i work in the enterprise). That said, consulting fits my lifestyle well. I get on a project, complete it, and then am done and can pursue some of my other interests (music, poetry, human languages, travel) with a minimum of interference. As a long term solution I think I would kill myself if I had to keep doing this forever, but as a solution to make money for the last couple years it hasn't been terrible. The problem is that the transition isn't particularly easy. Most of the skills I've acquired do transfer into other industry sectors, but I haven't stayed on top of the newest stuff in any of them (e.g. Rails magic, Javascript frameworks, etc.). I've thought about jumping ship once there is the crest of a new wave that becomes financially viable (e.g. Meteor) or even transitioning into a completely new line of work (e.g. management consulting/book writing) that kills less brain cells. As of now, however, I am simply unhappy and seeking the next best thing. Creating my own company or joining a fledging startup has always been of interest, but my lifestyle doesn't allow a 60hr/week commitment as of right now.