Ask HN: linux sysadmin considering going the consulting route

Hi all, I am a senior Linux systems admin, >10 years experience and have worked for high volume dotcoms. I'm looking for my next challenge and I am considering being a consultant. The thing that I am not certain about is the demand for Linux sysadmins on a per project basis. I know plenty of people doing consulting as software developers (and they seem very happy,) but don't really know anyone doing it as a sysadmin. I suspect that some smaller companies or even startups might be interested because they don't have the funds or need to have a senior sysadmin on staff, but could use expertise on a per project basis. While I'm based in the Boston area, I would consider doing projects around the world. Any advice or thoughts? Thanks.