A CCNA is absolutely worth the effort.
There is a caveat – Cisco equipment is expensive. Very expensive. This means that quite a number of smaller enterprises or IT SME’s may not necessarily be using Cisco tech – as such, your certification may not mean as much to them.
Versus other industry certifications, however, a CCNA also means that whoever carries the certification commands a very significant understanding of the basics and core concepts of networking in general. This makes you much more knowledgeable in general networking than someone without a certification.
Again: if your goal is to be a networking professional in the bigger leagues, dealing with complex Cisco systems for large, multinational businesses, then a CCNA is a big step in the right direction.
It’s just the beginning.
Money is a big issue.
One thing you should keep in mind, is that the right certification won’t just put you in a shortlist, but it’ll also help you during salary negotiations, letting you leverage the possibilities in your favor.
The certification will certainly help you in your career – but it won’t be life changing. You’ll have to advance your skills, bring years of experience to the table, and show specialization in networking through more advanced certifications like the CCIE. That being said, if you get into the path of networking with CCNA as a major stepping stone rather than a goal, you will be able to go on with a forward-thinking vision and find other, larger opportunities down the road as you grow and develop as a network administrator.