It is not for everybody. But if you are in the crowd who consider Slackware, things like fingerprint reader or wifi are not the first things that are important for you.
Get a ThinkPad X230 and go with OpenBSD to get some of that old school unix feeling.
I would say OpenBSD is closer to the Slackware idea. You install the system and it works how it was designed. It might not be what you want, but if you are a security-minded C programmer, OpenBSD gives you the full experience out of the box.