I had to buy a Clicker for college in a day when any number of phone apps, or even the Smart board, would have done exactly the same thing. I think it cost about $150 and the only thing it did -- THE ONLY THING IT DID -- was serve as an expensive and drastically crippled version of Kahoot. Abject waste of money for all parties involved.
I was coming to post the same. Those fucking clickers were so stupid and overpriced, all so my biochem professor could poll the class AND grade everyone on their results. Results to questions about material that was JUST taught in the same lesson. Good thing everyone benefits equally from lecture, right? Fuck that guy.