From someone who went from Wittgenstein -> programming, I think this is a good comment.

What I really like about the Tractatus, which I've been reading on and off for 20 years and just dusted off to read in German for the first time for the 100th anniversary, is that it gives a really clear, tight metaphysical picture that in the end pretty much forces one to start asking deep questions about the nature of meaning explored in his later work.

It's a hard book but careful study really enhances not just the "main event" of Wittgenstein's mature writings, but one's ability to follow a lot of the main threads not only in analytic philosophy, but in the broader Western metaphysical-logical tradition.