relliker writes "So here I am at age 39 with two contractual possibilities, for practically the same pay. With one, I continue being a techie for the foreseeable future — always having to keep myself up-to-date on everything tech and re-inventing myself with each Web.x release to stay on top. With the other, I'm being offered a chance to get into management, something I also enjoy doing and am seriously considering for the rest of my working life. The issue here is the age of my grey matter. Will I still be employable in tech at this age and beyond? Or should I relinquish the struggle to keep up with progress and take the comfy 'old man' management route so that I can stay employable even in my twilight years? What would Slashdot veterans advise at this age?"