Your guess was right, the Nextion IS the best choice for a small, affordable display. I use it in different versions in my sim-racing-office-desk setup. Only drawback for the "normal" PC-user is that you need some IT-skills to get it working and to get the most out of it. But like a slogan from a german hardware-store says: "You grow with your project". Don't hesitate to ask if you run into troubles.