Earlier quoted context omitted.
What issues did you encounter? And how can you call a $35 device "expensive"?
My brother took his to uni and couldn't log into the Wifi - I assume he has to enter uni credentials for it and the Chromecast doesn't support that Wifi authentication model.
Tell me how long it takes you to find explicit instructions on connecting a chromecast from this site[1]. I think most schools are just incredibly bad at managing their network infrastructure, and its really sad.