I bought a load from this guy a couple of years back, they were excellent.
If anyone wants to get into TC'ing certain species/varieties in Europe, then count me in. please PM me. I have a couple of interesting mother plants :-) for someone who knows what they're doing.
The other thing I would suggest is that someone with access to genetic material (from bioversity international, for instance) could put some of the rarer species into much wider circulation, which can only be a good thing right? Yes, you do have to pay a small % as a commercial royalty but thats no different to royalties on many plants.
As what our American friends would call 'hobbyists'
it is unlikely that we will ever collectively get up to volumes that would interest commercial TC growers. It's a case of sorting it within the .org community I guess.