Price of a tool
A tool that makes your job that much easier is worth it's weight in any trade. For video editors and 3D animators-cost for these things is not really an issue to a point-getting the job done without frustrating waits and hiccups is worth a lot.
I don't think anyone even remotely educated would argue that Thunderbolt has amazing potential, and USB3 offers a lot of bandwidth, but the point still stands that, on average, most thunderbolt devices are more expensive, sometimes more than people can afford.
A tool that makes your job that much easier is worth it's weight in any trade. For video editors and 3D animators-cost for these things is not really an issue to a point-getting the job done without frustrating waits and hiccups is worth a lot.