Upgrading a Mini To a LCD/SD Card Reader and is it worth it

As you all know school budgets are tight. We are hoping to upgrade 1-2 Mini’s with LCD/SD card readers to make it a little easier for training students how to use.

We had been trying to work with a RaspberryPi interface and that seems to be just to cluttered and students were also fiddling with things.

Is it worth it to add the LCD component ?