I imagine that poorly funded schools in poor neighborhoods have trouble getting students to buy these things (or buying them for students who can't). I feel lik

I imagine that poorly funded schools in poor neighborhoods have trouble getting students to buy these things (or buying them for students who can't). I feel like plenty of teachers would tell their students to buy a cheap graphing calculator, just so that they could teach a class where everyone actually had the device. There's definitely a market for this.