Disclaimer - this is my opinion. I'm sure others will have varying degrees of opinion and if you ask somebody in the R/S (now Enterprise) or Security space they may feel differently. That being said, Collab isn't going anywhere. In fact it has been growing for years with the increase in video and Webex, part due to remote workers and global businesses. With R/S, you focus on the underlying infrastructure that all other systems use. Security you focus on the safety of the network from inside/outside threats. However with Collab you not only need to know Collab but you need to have an understanding of R/S as well as Security, though not to the level a CCNP in either of those fields does. That in itself can set you up for a possible career change down the road should your desires change or business needs relocate you. As far as salary goes, like any job, it all depends on where you land and where you live as well as experience and if you are on the engineering side or operations side (engineering will make more typically).
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