Glad it was helpful

Thanks!

Agreed - sad to see them go.

That's correct: the accuracy of NDBs is relatively poor even under ideal conditions, and non-ideal conditions are make results much worse. VOR has been the main en route navigation aid for many decades, but in the United States the FAA is phasing out some VORs as part of their NextGen initiative (where GPS plays the key role). DME (distance measuring equipment) is also used widely for en route navigation and I believe the FAA is planning to actually expand DME coverage as it reduces VOR coverage, partly as a backup in the event of a GPS outage. Note that this applies to the United States, and the situation may be different in different parts of the world.

Still has it's uses. Like you could have it point towards your final destination if avaliable as an additional aid if for some reason you get lost. Obviously you should check every so often to ensure you're still picking up the correct signal but for the most part it can give you a picture of where you are heading should your primary navigation source fail. It's not ideal but certinly an easy way to figure out relative position on a paper map if forelflight crokes on your iPad mid flight. (Don't take this as professional advice, I'm not a pilot, just a simmer).

If you look at a recent sectional chart, most of the NDBs in the United States (nominally) have a Morse ID, so the slide is correct.

Twelve thousands views and you're the first one to catch that :) Yep, absolutely correct - thanks! Incidentally, I both write and "narrate" my presentations, so the fault is doubly my own :)