I'd buy one. My current one is doing ok but at 3+ years it's starting to get a little rough around the edges. But since I can't buy a new one I'm just nursing this one along for as long as I can and then I'll buy a couple of them second hand and refurbish. If you don't need a smartphone an old Nokia featurephone is as good as it gets.
Ultra reliable, super good battery life and made to take a beating.