This is a really good topic. I’m now lucky to be in a position that most of my WordCamp travels are paid for but I do know how it hard it was when I was a freelancer.
I totally get that a WordCamp should be local but I also would love to see that a WordCamp has a good mix of speakers and that can be challenging in certain countries. As what David said, a lot of speakers who are from abroad are mostly from bigger agencies. And being part of WordCamp Belgrade, I would love to invite some foreign speakers so the people in Serbia can meet with people who are more involved in the project.
Side note: Sorry David, I should have said something to you about it.