[tjr]

Generally my answer also, but I do still sometimes buy programming books, as sometimes I find the online documentation inadequate for me to understand something.

One example: probably contrary to a lot of people on HN, I haven't done a whole lot of web programming, and a few years ago got involved in a project that touched on Angular, Node, VueJS, etc. I found reading (parts of) a few real books to be helpful in getting up to speed in general understanding, but now am back to just using web resources.