I'll take 99.8% uptime over managing an entire blog infrastructure.
It's a static site, so you can host incredibly easily on any number of cloud services, from heroku to AWS S3/CloudFront, many (most?) people keep their Jekyll sites in a git repo (often github) so you won't lose data, and can easily shove it onto another server in no time at all.
Really, it's less maintenance than pretty much anything I've ever had online.