Interesting topic, apart from a lack of IT knowledge. There will be a cost factor, although many clubs in Australia have fairly sophisticated set up to convey the demo to the back of the room so to peak. As the well known demonstrators will command a decent crown 75-100 where facilities allow.
Distance is not usually an issue its just a part of life of living here In Australia and we accept that. I.e I drove to Sydney to Emerald in Queensland to pick up some exotic timber and back 3000k round trip one way is 16hrs nonstop. A bit far but acceptable considering what I was after.
We do have what we call GTG's meeting in various locations, often its the same workshop as not everybody is open to sponsoring this sort of event or have the facilities. They are a very laid back affair with some serious turning thrown in its not usual for a well known turner to come along if they live local.
One of the downsides of doing remote is the personal contact . The eye contact and the general camaraderie of the event adds much to the value for the individual. Plus during the various breaks everybody can and does mingle, chat etc , many solid friendships have been developed at these times and ensures the demonstrator a good response and time if they return.
We are all human and if a good time was had by all then all will return should the occasion arise again in the future. I the idea of remote viewing is a good thing and it has a part to play in this craft.
But I doubt if it will supersede the personal demonstration of a well known and respected turner, as in these meeting there is teaching and also imparting that takes place.