I think this poll would be enhanced by a question about how much of whatever available storage is actually in use. Of the 128GB in my iPadPro 4th Gen, I have just over half, 68GB, available after a couple of years of use. So apparently I got the right amount and am happy to have saved the initial cost. I keep document files in Dropbox, and all photos/videos on my iMac and attached hard drives, also backed up to Dropbox.