Once I finish my CCNA studies, I would be really interested in possibly getting the Certified Wireshark Network Analyst certification. My current company uses the program, and they really like when employee's get certifications on their own. I'm hoping the CCNA/CWNA/RHCSA will put me up for a promotion

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I was looking at
Chappell University - Online Training - All Access Pass and noticed it cost $699 for a one year online license. They offer over 10 different courses, but once you add-in the cost to take the certification + online access, I'm looking at $1000 total for a certification on a program that is free.
It seems like a no-brainer to save the $1000, but I personally feel I could gain some in-depth knowledge of various protocols plus troubleshooting skills that could benefit my networking and security career.
** Edit: When I search "wireshark" on indeed.com, it comes back with over 1,500 hits..so employers like the knowledge.
I'm hoping to get feedback from anybody who has taken the online courses but I also would not mind hearing other opinions as well.