Definitely funny. The reactions in the "Watch my Bag" are pretty predictable. The selective attention one was neat. I only counted 12 passes and how could you not see the gorilla?!
The invading space example is creepy. I like experiments where they are a little less obtrusive and more subtle.
I took a class on communication back in high school and we had to do some similar experiments. One involved leaning in really close while someone was on the phone, looking over someone's shoulder while they are on the computer, sitting at a table in the library right next to another person even when there are plenty of empty seats all over the library. Another funny one was walking into an elevator and not turning around to face the doors.