It's funny how true that is. Every day I write SQL I'm grateful that I'm on a relational database and not on some hot new nosql system that is both over and underkill for the work I do.
For a while learning my way around a nosql database was on my to-do for professional development list. I won't claim there aren't valid use cases, but once I got around to spending a few hours poking around I quickly realized it would not make my life any easier.