I'm much more likely to continue to update a site in my spare time if it's a static site on a managed service than if I have to keep on top of security updates

I'm much more likely to continue to update a site in my spare time if it's a static site on a managed service than if I have to keep on top of security updates for a web server and a CMS and a backing database and the operating system(s) underneath it all. It's just too much administration for something I mildly enjoy doing in the first place. But your insistence that Wordpress (possibly as a static gen) is worth it has me interested. Where would you recommend I pick up a DRM-free copy of the first edition?