What do/did you use your Hololens for? I tried out the first gen version at a meetup and it was really nifty (the latency was fantastic), but I just couldn't w

What do/did you use your Hololens for? I tried out the first gen version at a meetup and it was really nifty (the latency was fantastic), but I just couldn't work out what anyone would use it for in real life, it seemed too limited to be useful.