My company uses distance training quite a lot. No, it is not as good as the "real thing", but it is much better than no training at all because of cost constraints.
What works reasonably well, i.e. 2nd best, are virtual classrooms, rather than just self-paced CBT. i.e. the training is interactive - it is delivered by a live person, using web based tools for whiteboarding, showing slides, or even real-time video, and all the students need is a broadband connection and ideally a mic so that they can ask questions. That can be done via the keyboard, but it's a bit clanky, so although not absolutely essential a mic is, in practical terms, a necessity, but a headset that you can wear comfortably for hours is going to cost less than a week's travel to a class, or less than 1 day if it involves paying for accommodation.
I would have thought that with something like 2382 training it could in some ways be better - if you want to ask questions as you go along you can do so in a way that everyone has to answer, not just one person putting up their hand, and they can answer anonymously without fear of being seen by their classmates to be wrong, so the lecturer can get much better feedback, in real time, on how the class is doing.