It's remind me a few years ago, on 2004 to be exact. many people were attracted to sit for Microsoft training, including me. I felt that it would be the end of free linux. However, Linux becomes strong and strong nowadays. It could compete with Windows and MacOS.
Does my MCSA useless, now? I don't think so, it is still useful, helping me to learn linux and think of creating GUI based configurator such as in M$ world.