46, still in the game, though I admit the design portion holds much more fascination for me these days. To the OPs point, I do experience a great deal of pressure to head towards management every time I switch jobs. My rational is that when I get to the point where I can't absorb the minutiae, but can still see the big picture, maybe it's time for me to push the keyboard away and manage. Haven't gotten there yet (that I know of).