Most of the professional IT courses are a waste of time I find. They have become a money generating exercise for the likes of Microsoft, Cisco etc. Also they only teach you how to set things up, never how to troubleshoot and fix things (which is what a tech spends most of their time doing).
I was forced to do ITIL (ugh) when I started my current job as an operations tech. But pretty much all my technical knowledge was acquired on the job by doing.
The actual useful courses are probably ones like ethical hacking, pen. testing, and data forensics related ones. Big demand for it too now.