Sure. It seems to me its a matter of just what you are trying to do. As a design engineer in a production environment or even working on side projects, you would tend to be a lot more productive using Altium for the foreseeable future. It may ultimately be the superior package, though from the video you did on the schematic editor of KiCAD, it seemed to hold its own quite well.
On the other hand, as the host of a video blog and website that is largely (mostly?) oriented towards students, amateurs and hobbyists, advanced and otherwise, it would be hard to justify spending a lot of time teaching us about a CAD package that most cannot justify purchasing. Perhaps what the military calls a high-low mix is in order, focusing on Altium and KiCAD and deprecating everything else. Or, you can at least look into going with KiCAD for everything, assuming KiCAD doesn't end up being crap in your eyes.
Yes, I've been thinking about that, and therein lies the problem. Unless a package is incredibly easy to use, the learning curve is going to be steep, and then may not do stuff easily like proper panelisation I need for production boards.
So I may actually end up having to use one package for simple stuff, and to promote to people doing simple one-off boards, and a more advanced package (DIPtrace, Eagle?) for more advanced stuff, or even sticking with what I know in Altium as you say - just to "get the job done" for projects.
Will KiCAD even handle panelisation easily? I'm thinking maybe not, and that might be a show-stopper for me personally.
I don't know, but I can tell you as a viewer, I can see myself spending a lot of hours watching KiCAD-related stuff and cant justify anything like that investment of time in Altium videos. Also, I can see myself buying instructional materials for KiCAD, so it may be a better fit for your business model overall going forward.
Any "instructional" type videos I do will not be how to use a particular package, but be as tool-agnostic as possible, and focus on the PCB layout in general.
But there is ultimately only so much you can do there.
BTW, I'm seriously considering making that sort of thing paid content stuff, and not part of the regular blog.
Dave.