I do have an even older one (I think iPad 2) somewhere, was used in the kitchen for splashy stuff. I think I also have the original iPad Air from a former mothership mouldering in the IT drawer.
The 10-year-old still mostly works and holds a decent charge, but increasingly it's struggling with websites and many of the apps don't work. I was sort of went off tablets but there's been a couple of times recently when I've thought, actually, a tablet would have been useful.
Apple stuff is a bit annoying though, as it refuses to die at a sensible age and litters my house. Looks at 2007 Mac Mini, cursedly. That got supplanted in printer and back-up duties by the 2009 Mac Mini, and now serves as a paperweight.
The fancy new iPad Air looks nice, though it's a bit of a mark-up mostly for the fancy new processor, but if it lasts me another 10 years, probably worth it.