Probably already all said. The obvious: it actually... depends.
Not all tools fit all needs. And given money is usually a parameter, investing in something expensive if you're only using 10% of its features is just wasted money.
Beyond your needs in terms of features and the cost, then there is the context. The choice of an EDA tool will also largely depend on the context. Is it for student use? Is it for personal/hobbyist use? Is it for a company? (in which case, unless this is a very small company or you're head of engineering, there is little chance you'll get to have a word anyway.)
KiCad has now indeed progressed enough that it can be decently used in many kinds of contexts. But, in medium/large companies, it will still be much more common to see a commercial EDA.
If your question implies the underlying question: "what EDA should I learn in order to improve my employability", then of course this is yet a different point. And still, there wouldn't be a single answer. It would all depend on the kind of company you're interested in working at, and the kind of job. Some companies will not care - as long as you have any previous basic knowledge of any EDA, it will be OK, unless you're specifically applying for a position in which layout will be your main task. Which leads me to a corollary: specific EDA knowledge most often matters more for the layout part than anything else. Nobody will really care if you know how to draw a schematic using the schematic editor of some EDA. It's usually pretty straightforward for anyone with basic knowledge after a few minutes of use. If the EDA embeds some kind of sophisticated database, that could be some useful knowledge too, but that's about it IMHO.
In any case, there are many EDA tools out there, so focusing on just one, if you want to improve your employability, is not necessarily a smart move, or at least useful. All I know is that Altium is pretty popular, and seems excessively so in Australia, for instance. So if you're going to work in Australia and have to make a choice, learning Altium would probably make sense. In other parts of the world, you'll see more of Orcad, or Mentor, or Cadstar, or...
And frankly, if you're thinking of investing your OWN money as a student, I would just suggest keeping your money for more useful stuff and use KiCad. Now if you get access to one of the major EDA through your university for free, then fine.