My old university did get some hololenses a few years ago and we were able to do some projects with it.

Of course this included us being allowed to play the games it came with. The scanning of a room works really fucking well and Fragments was fun to play. Probably not in a messy living room, but in our lab it was cool. The characters/objects were placed in the room and you could walk around them and observe them from all angles. The experience was honestly just "wow".

Another cool thing was Holoportation (though the capturing & transformation of data is the big problem - the replay is relatively easy).

Really sucks that it's gone.

Agreed, it looked cool. I liked the Minecraft edition they showed off.