We do have a few insect fairs, but live beetles aren't typically available at these events. Mostly, we collect US species and raise them. Occasionally, some hobbyists will share material of non-native species.
There are only a few insect fairs a year and they are far too far for most of us and also the primary product is dead insects. There are many reptile fairs within a few hours of anyone and those often have tarantulas but not beetles.
Really wonderful video! The US is a wonderful country to be a beetle hobbyist in, but we sure are behind the times in tasteful pet hobbies! If I never see another dog or cat, I'll be just fine. When I see a video like that, I think of the future.
We just had our annual BugFair at the Natural History Museum of LA County. Tons of live and dried inverts and insect related items. The one thing you can't buy/sell are beetles... specially since USDA and APHIS both have booths at the event... not that it has not happened in years past, but it's best not to ;-)