I think what it has come down to is a better understanding of where each of the various learning opportunities has it's place. We don't have to choose just one to use, we need to use the right strategy or tool at the right time. A paint brush won't do when a screw driver is needed.
Where we can't accommodate the travel on an ongoing basis or at all, or schedules don't allow distance learning is a great option. E-Learning courses can be the short and sweet learning bytes needed for all our volunteers. They are ready to go any day of the week and will get everyone the same information.
While the learning becomes more learner centered in this model, we have opportunities to dig deeper in the areas we need more time for. The educator has a lot of importance in choosing the appropriate content, how to encourage students outside of the classroom and what to do with those that arrive without having done their part before hand... have you heard of Just in Time Learning? We will have to explore this on another post.