Definitely a formational memory for me as well. There was a hologram gallery in a mall in Orem, Utah in the early 90's. I spent hours in there, but could never afford to buy one. I wish these were more available. I did manage to buy one about 10 years ago, but sadly it was lost in a move.

I really need to acquire a bunch for the science museum I'm going to open. Will probably need a bunch of kits as well. This is the sort of thing that can change someone's life as a child. There's no replacement for that sense of wonder.