Here is the issue with those certs. Money. Most of those certs are not cheap. Microsoft Certs can be expensive to get depending on which you want. While the article mentions Windows Server, there is also certs on others like SharePoint and Exchange.

Cisco is cheap if you go through the academy, but if you don't it can easily cost you close to $1000 for the test and study materials.

As a person who has their VCP, I will tell you that I will never go after that certification again. The cost for the courses ($6000 per course), study materials, and test cost me just as much as a bachelors degree from my local university.

The same thing goes for the PMP (PMBOK). While in the military you read the PMBOK, getting the cert is nothing but difficult and expensive.

From that list the only ones that are considered inexpensive are the A+/N+ certs but if your looking for anything higher than Help Desk then those certs are considered useless.