I wish that every talk was like that, but it doesn't really work out that way. I guess some of that is my own fault. We have to do mummification as part of the school tour, so I perform it multiple times every week. Naturally, I'm going to get really good at it. By comparison, I might do a talk about cosmetics or Mesopotamia once every two to three months. Add in the fact that I don't get a lot of time to study the talks at the museum - and school keeps me so busy that I'm definitely not doing a lot of work on it outside my internship hours - and the monthly talks aren't nearly as polished as my mummification spiel.
Well, we do what we can.