My 1st gen iPad (that I pre-ordered on day 1 when they were available) is still in use... as a digital picture tube for a vintage TV.
My 2nd gen iPad is dedicated to my arcade game system using an iCade cabinet and iMame for iOS.
My 2018 iPad is my digital journal/notebook. I've had a bunch more iPads and iPad Pros that I've given away or traded in.