No, they are still being sold as new, they are the cheapest new iPads on sale now. iPads work for years. We have my parents’ old iPad 2 (yes, the second one released ever), and while the battery is weak, it still works well enough for our daughter. My wife’s iPad Pro is from 2016, and again, apart from a very weak battery it still works great. As a TR projector it’d be good for as long as her device is supported.